{"id":2120,"date":"2026-01-24T14:10:49","date_gmt":"2026-01-24T14:10:49","guid":{"rendered":"https:\/\/ftmtechnologies.com\/blog\/types-of-wind-tunnels\/"},"modified":"2026-02-24T23:45:24","modified_gmt":"2026-02-24T23:45:24","slug":"types-of-wind-tunnels","status":"publish","type":"post","link":"https:\/\/ftmtechnologies.com\/en\/blog\/types-of-wind-tunnels\/","title":{"rendered":"Types of wind tunnels"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"2120\" class=\"elementor elementor-2120 elementor-1750\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-b669c2c e-flex e-con-boxed e-con e-parent\" data-id=\"b669c2c\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-8876d38 elementor-widget elementor-widget-heading\" data-id=\"8876d38\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Types of wind tunnels: classification, uses, and key differences<\/h1>\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-30b6eaa e-flex e-con-boxed e-con e-parent\" data-id=\"30b6eaa\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-213437b e-con-full e-flex e-con e-parent\" data-id=\"213437b\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-a6f4c81 elementor-widget elementor-widget-text-editor\" data-id=\"a6f4c81\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>In the field of engineering and aerodynamics, wind tunnels are facilities designed to generate controlled airflow over stationary objects. Although their internal operation can be complex, what truly matters is understanding <strong>what types of wind tunnels exist, which ones are best suited to each project, and the specific purpose of each.<\/strong> <\/p><p>The following sections present a clear and comparative classification that will help support informed decision-making based on the intended objective.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0530912 elementor-widget elementor-widget-image\" data-id=\"0530912\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"700\" height=\"400\" src=\"https:\/\/ftmtechnologies.com\/wp-content\/uploads\/2026\/01\/tipos-de-tuneles-de-viento-horizontal.jpg\" class=\"attachment-large size-large wp-image-2113\" alt=\"horizontal wind tunnel types\" srcset=\"https:\/\/ftmtechnologies.com\/wp-content\/uploads\/2026\/01\/tipos-de-tuneles-de-viento-horizontal.jpg 700w, https:\/\/ftmtechnologies.com\/wp-content\/uploads\/2026\/01\/tipos-de-tuneles-de-viento-horizontal-300x171.jpg 300w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1ad702d elementor-widget elementor-widget-spacer\" data-id=\"1ad702d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-208523e elementor-widget elementor-widget-heading\" data-id=\"208523e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"> What types of wind tunnels exist?\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a4d00f7 elementor-widget elementor-widget-text-editor\" data-id=\"a4d00f7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Understanding how <a href=\"https:\/\/ftmtechnologies.com\/en\/blog\/how-a-wind-tunnel-works\/\">wind tunnels operate<\/a> is key to understanding how they can be classified according to multiple technical criteria, each addressing specific testing, optimization, or research needs in industrial and scientific contexts. There is no \u201cuniversal\u201d wind tunnel suitable for every application: each type is optimized for specific uses, defined velocity ranges, and particular measurement objectives. <\/p><p class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\">Proper classification makes it possible to quickly identify which configuration delivers the best results for each case, optimizing both investment efficiency and the quality of the data obtained.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5093940 elementor-widget elementor-widget-heading\" data-id=\"5093940\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Wind tunnel classification<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9e7c477 elementor-widget elementor-widget-text-editor\" data-id=\"9e7c477\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\">Before selecting or designing a wind tunnel, it is essential to understand the different ways in which wind tunnels can be classified. This technical classification makes it possible to accurately assess which option is best suited for each specific application. <\/p><h2 data-pm-slice=\"1 1 []\"><strong>According to the airflow circuit: open-circuit vs closed-circuit<\/strong><\/h2><p class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\">The configuration of the airflow circuit is one of the most important decisions in wind tunnel design, as it directly affects flow quality, operating costs, and measurement accuracy.<\/p><h3><strong>Open-circuit wind tunnel (Eiffel type)<\/strong><br><strong><br><\/strong><\/h3><p><strong>Technical characteristics:<\/strong> ambient air is drawn in, conditioned, and passed through the test section; it is then exhausted back to the atmosphere. The flow path is essentially linear, with no recirculation. <\/p><p><strong>Advantages:<\/strong><\/p><ul data-spread=\"false\"><li><p><strong>Lower structural complexity: <\/strong>it typically requires fewer ducts and fewer return elements.<\/p><\/li><li><p><strong>Always \u201cfresh\u201d air:<\/strong> it facilitates smoke or fog visualization tests without accumulation.<\/p><\/li><li><p><strong>Simple operation<\/strong>, well suited for educational laboratories or versatile test benches.<\/p><\/li><\/ul><p><strong>Limitations:<\/strong><\/p><ul data-spread=\"false\"><li><p>More sensitive to ambient conditions: temperature, humidity, and pressure can introduce variability.<\/p><\/li><li><p><strong>Higher inlet conditioning requirements <\/strong>when high flow uniformity is needed.<\/p><\/li><li><p><strong>Noise and air exhaust:<\/strong> it may require soundproofing or filtration measures.<\/p><\/li><\/ul><p><strong>Typical applications: <\/strong>preliminary validations, educational institutions, R&amp;D activities with constrained budgets, and tests that require frequent flow visualization.<\/p><h3><strong>Closed-circuit wind tunnels (G\u00f6ttingen type)<\/strong><\/h3><p> <\/p><p data-pm-slice=\"1 1 []\"><strong>Technical characteristics: <\/strong>the air circulates in a closed loop within the facility. After passing through the test section, it flows through diffusers and return passages (including corners with turning vanes or guide vanes) and then returns to the contraction section to re-enter the test chamber. <\/p><p data-pm-slice=\"1 1 []\"><strong>Advantages:<\/strong><\/p><ul data-spread=\"false\"><li><p><strong>Greater control of conditions: <\/strong>the system maintains a more stable and repeatable flow.<\/p><\/li><li><p><strong>Better energy efficiency<\/strong> during sustained operation by recirculating the air.<\/p><\/li><li><p><strong>Lower external acoustic impact<\/strong> in many configurations.<\/p><\/li><\/ul><p><strong>Limitations:<\/strong><\/p><ul data-spread=\"false\"><li><p><strong>Higher initial investment: <\/strong>more complex structure, return circuit, and components.<\/p><\/li><li><p><strong>Thermal management:<\/strong> during long-duration tests, it may be necessary to control air heating.<\/p><\/li><li><p><strong>More demanding maintenance <\/strong>due to a higher number of components and less accessible areas.<\/p><\/li><\/ul><p>Typical applications: repetitive, high-precision testing (automotive, aerospace, research centers) where repeatability is critical.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5158c76 elementor-widget elementor-widget-image\" data-id=\"5158c76\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"700\" height=\"400\" src=\"https:\/\/ftmtechnologies.com\/wp-content\/uploads\/2026\/01\/tuneles-de-circuito-abierto-cerrado.jpg\" class=\"attachment-large size-large wp-image-2114\" alt=\"Open and closed-circuit wind tunnels\" srcset=\"https:\/\/ftmtechnologies.com\/wp-content\/uploads\/2026\/01\/tuneles-de-circuito-abierto-cerrado.jpg 700w, https:\/\/ftmtechnologies.com\/wp-content\/uploads\/2026\/01\/tuneles-de-circuito-abierto-cerrado-300x171.jpg 300w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8a4b920 elementor-widget elementor-widget-spacer\" data-id=\"8a4b920\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f670343 elementor-widget elementor-widget-heading\" data-id=\"f670343\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">According to the velocity regime: subsonic, transonic, supersonic, hypersonic<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cadb91b elementor-widget elementor-widget-text-editor\" data-id=\"cadb91b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p data-pm-slice=\"1 1 []\">The velocity regime defines the aerodynamic phenomena that can be studied and the tunnel requirements, including internal geometry, instrumentation, and control systems.<\/p><h3><strong>Subsonic wind tunnels:<\/strong><\/h3><p>Air compressibility effects are negligible. They account for approximately 85% of all wind tunnels in operation worldwide. <\/p><p class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"><strong>Main sectors:<\/strong><\/p><ul class=\"[li_&amp;]:mb-0 [li_&amp;]:mt-1 [li_&amp;]:gap-1 [&amp;:not(:last-child)_ul]:pb-1 [&amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"><li class=\"whitespace-normal break-words pl-2\">Automotive: approximately 80% of applications<\/li><li class=\"whitespace-normal break-words pl-2\">Civil engineering and architecture: approximately 15%<\/li><li class=\"whitespace-normal break-words pl-2\">Wind energy, sports, and others: approximately 5%<\/li><\/ul><p class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"><strong>Typical applications:<\/strong><\/p><ul class=\"[li_&amp;]:mb-0 [li_&amp;]:mt-1 [li_&amp;]:gap-1 [&amp;:not(:last-child)_ul]:pb-1 [&amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"><li class=\"whitespace-normal break-words pl-2\">Aerodynamic optimization of vehicles (drag coefficient reduction)<\/li><li class=\"whitespace-normal break-words pl-2\">Battery cooling in electric vehicles<\/li><li class=\"whitespace-normal break-words pl-2\">Wind loads on buildings and bridges<\/li><li class=\"whitespace-normal break-words pl-2\">Wind turbine design<\/li><li class=\"whitespace-normal break-words pl-2\">Commercial drones and UAVs<\/li><li class=\"whitespace-normal break-words pl-2\">Sports positioning (cycling, skiing)<\/li><\/ul><p class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"><strong>Advantages:<\/strong><\/p><ul class=\"[li_&amp;]:mb-0 [li_&amp;]:mt-1 [li_&amp;]:gap-1 [&amp;:not(:last-child)_ul]:pb-1 [&amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"><li class=\"whitespace-normal break-words pl-2\">The most versatile option for general industrial applications.<\/li><li class=\"whitespace-normal break-words pl-2\">Lower construction and operating costs<\/li><li class=\"whitespace-normal break-words pl-2\">Well-developed standard instrumentation<\/li><li class=\"whitespace-normal break-words pl-2\">Suitable for approximately 90% of real-world applications<\/li><\/ul><h3><strong>Transonic wind tunnels:<\/strong><\/h3><p>Flow with simultaneous subsonic and supersonic regions. Local shock waves appear. They require slotted or perforated test sections to relieve pressure disturbances.  <\/p><p class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"><strong>Typical applications:<\/strong><\/p><ul class=\"[li_&amp;]:mb-0 [li_&amp;]:mt-1 [li_&amp;]:gap-1 [&amp;:not(:last-child)_ul]:pb-1 [&amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"><li class=\"whitespace-normal break-words pl-2\">Modern commercial aircraft (cruise at Mach 0.78\u20130.85)<\/li><li class=\"whitespace-normal break-words pl-2\">Wing optimization for efficient flight<\/li><li class=\"whitespace-normal break-words pl-2\">Jet engine turbines<\/li><li class=\"whitespace-normal break-words pl-2\">Helicopters at maximum operating speeds<\/li><\/ul><p class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"><strong>Technical challenges<\/strong><\/p><ul class=\"[li_&amp;]:mb-0 [li_&amp;]:mt-1 [li_&amp;]:gap-1 [&amp;:not(:last-child)_ul]:pb-1 [&amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"><li class=\"whitespace-normal break-words pl-2\">Precise control of the Mach number<\/li><li class=\"whitespace-normal break-words pl-2\">Adaptive or slotted walls<\/li><li class=\"whitespace-normal break-words pl-2\">High-frequency instrumentation<\/li><li class=\"whitespace-normal break-words pl-2\">High-capacity cooling due to aerodynamic heating<\/li><\/ul><h3 data-pm-slice=\"1 3 []\"><strong>Supersonic wind tunnels<\/strong><\/h3><p>They operate entirely above the speed of sound. They require Laval nozzles (convergent\u2013divergent), vacuum systems, and the capability to handle intense shock waves. <\/p><p class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"><strong>Typical applications:<\/strong><\/p><ul class=\"[li_&amp;]:mb-0 [li_&amp;]:mt-1 [li_&amp;]:gap-1 [&amp;:not(:last-child)_ul]:pb-1 [&amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"><li class=\"whitespace-normal break-words pl-2\">Supersonic fighter aircraft<\/li><li class=\"whitespace-normal break-words pl-2\">Missiles and rockets<\/li><li class=\"whitespace-normal break-words pl-2\">Space launch vehicles<\/li><li class=\"whitespace-normal break-words pl-2\">Atmospheric reentry studies<\/li><\/ul><p class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"><strong>Complexity:<\/strong><\/p><ul class=\"[li_&amp;]:mb-0 [li_&amp;]:mt-1 [li_&amp;]:gap-1 [&amp;:not(:last-child)_ul]:pb-1 [&amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"><li class=\"whitespace-normal break-words pl-2\">Extreme heating (hundreds of \u00b0C)<\/li><li class=\"whitespace-normal break-words pl-2\">Short test durations (seconds to minutes)<br><br><br><\/li><li class=\"whitespace-normal break-words pl-2\">Specialized instrumentation (&gt; 100 kHz)<\/li><li class=\"whitespace-normal break-words pl-2\">Very high operating costs<\/li><\/ul><h3 data-pm-slice=\"1 1 []\"><strong>Hypersonic wind tunnels<\/strong><\/h3><p data-pm-slice=\"1 1 []\">Extreme regime involving molecular dissociation, air ionization, and real-gas effects. They operate in \u201cshot\u201d mode with test durations of only a few seconds. <\/p><p class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"><strong>Applications:<\/strong><\/p><ul class=\"[li_&amp;]:mb-0 [li_&amp;]:mt-1 [li_&amp;]:gap-1 [&amp;:not(:last-child)_ul]:pb-1 [&amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"><li class=\"whitespace-normal break-words pl-2\">Space reentry vehicles<\/li><li class=\"whitespace-normal break-words pl-2\">Hypersonic missiles<\/li><li class=\"whitespace-normal break-words pl-2\">Aerothermochemical research<\/li><li class=\"whitespace-normal break-words pl-2\">Thermal protection systems and ablation<\/li><\/ul><p class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"><strong>Limitations:<\/strong><\/p><ul class=\"[li_&amp;]:mb-0 [li_&amp;]:mt-1 [li_&amp;]:gap-1 [&amp;:not(:last-child)_ul]:pb-1 [&amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"><li class=\"whitespace-normal break-words pl-2\">Temperatures of thousands of \u00b0C<\/li><li class=\"whitespace-normal break-words pl-2\">Tests lasting only a few seconds<\/li><li class=\"whitespace-normal break-words pl-2\">Extreme operating costs (thousands of euros per test)<\/li><li class=\"whitespace-normal break-words pl-2\">Typically operated by space agencies or defense organizations<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4f29e8d elementor-widget elementor-widget-image\" data-id=\"4f29e8d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"700\" height=\"400\" src=\"https:\/\/ftmtechnologies.com\/wp-content\/uploads\/2026\/01\/tuneles-de-viento-por-regimen-de-velocidad.jpg\" class=\"attachment-large size-large wp-image-2115\" alt=\"Wind tunnels by velocity regime: subsonic, transonic, supersonic, hypersonic\" srcset=\"https:\/\/ftmtechnologies.com\/wp-content\/uploads\/2026\/01\/tuneles-de-viento-por-regimen-de-velocidad.jpg 700w, https:\/\/ftmtechnologies.com\/wp-content\/uploads\/2026\/01\/tuneles-de-viento-por-regimen-de-velocidad-300x171.jpg 300w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7fb657c elementor-widget elementor-widget-spacer\" data-id=\"7fb657c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fc57463 elementor-widget elementor-widget-heading\" data-id=\"fc57463\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Wind tunnel classification<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-26e0aea elementor-widget elementor-widget-text-editor\" data-id=\"26e0aea\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p data-pm-slice=\"1 3 []\">Depending on the tunnel design and the way the air circulates, the test section can be either open or closed.<\/p><h3 data-pm-slice=\"1 3 []\">According to the test section: open vs. closed<\/h3><p> <\/p><h4><strong>Closed test section<\/strong><\/h4><p>The closed test section is used in wind tunnels designed to provide a high degree of control and repeatability in airflow conditions.<\/p><p><strong>Advantages:<\/strong><\/p><ul data-spread=\"false\"><li><p><strong>Greater control of the flow<\/strong> and, in general, good repeatability.<\/p><\/li><li><p>It facilitates maintaining uniform conditions within the measurement zone.<\/p><\/li><\/ul><p><strong>Limitationes:<\/strong><\/p><ul data-spread=\"false\"><li><p>It can introduce <strong>wall effects<\/strong> (blockage) if the model occupies an excessively large relative volume.<\/p><\/li><\/ul><h4><strong>Open test section<\/strong><\/h4><p>The open test section is characterized by allowing air to flow directly from the surrounding environment through the test area and then be discharged back into the atmosphere.<\/p><p><strong>Advantages:<\/strong><\/p><ul data-spread=\"false\"><li><p>It can reduce certain confinement effects, depending on the setup and the test objective.<\/p><\/li><li><p>Useful in specific free-jet configurations and flow visualization setups.<\/p><\/li><\/ul><p><strong>Limitations:<\/strong><\/p><ul data-spread=\"false\"><li><p>It requires a careful measurement approach and appropriate corrections to ensure comparability.<\/p><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4ed2faa elementor-widget elementor-widget-image\" data-id=\"4ed2faa\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"700\" height=\"400\" src=\"https:\/\/ftmtechnologies.com\/wp-content\/uploads\/2026\/01\/tuneles-de-viento-seccion-de-ensayo.jpg\" class=\"attachment-large size-large wp-image-2116\" alt=\"open and closed test sections\" srcset=\"https:\/\/ftmtechnologies.com\/wp-content\/uploads\/2026\/01\/tuneles-de-viento-seccion-de-ensayo.jpg 700w, https:\/\/ftmtechnologies.com\/wp-content\/uploads\/2026\/01\/tuneles-de-viento-seccion-de-ensayo-300x171.jpg 300w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f42ebe8 elementor-widget elementor-widget-spacer\" data-id=\"f42ebe8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-52d3398 elementor-widget elementor-widget-text-editor\" data-id=\"52d3398\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h3 class=\"text-text-100 mt-2 -mb-1 text-base font-bold\">According to flow orientation<\/h3><p>The orientation of the flow in a wind tunnel is a key design criterion, as it directly influences airflow stability, instrumentation layout, and the types of tests that can be performed.<\/p><h4 class=\"text-text-100 mt-2 -mb-1 text-base font-bold\">Horizontal wind tunnels<\/h4><div>Horizontal wind tunnels are the most commonly used configuration for aerodynamic testing due to their stable and versatile layout. They account for more than &gt;95% of all aerodynamic wind tunnels. The airflow is horizontal and parallel to the ground, with the model mounted on supports or force balances.  <\/div><p class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"><strong>Applications:<\/strong><\/p><ul class=\"[li_&amp;]:mb-0 [li_&amp;]:mt-1 [li_&amp;]:gap-1 [&amp;:not(:last-child)_ul]:pb-1 [&amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"><li class=\"whitespace-normal break-words pl-2\">Virtually all engineering tests<\/li><li class=\"whitespace-normal break-words pl-2\">Vehicles, aircraft, structures, athletes<\/li><li class=\"whitespace-normal break-words pl-2\">Investigaci\u00f3n fundamental en aerodin\u00e1mica<\/li><\/ul><p class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"><strong>Advantages:<\/strong><\/p><ul class=\"[li_&amp;]:mb-0 [li_&amp;]:mt-1 [li_&amp;]:gap-1 [&amp;:not(:last-child)_ul]:pb-1 [&amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"><li class=\"whitespace-normal break-words pl-2\">Standard configuration with extensive technical experience<\/li><li class=\"whitespace-normal break-words pl-2\">Facilitates model installation and access<\/li><li class=\"whitespace-normal break-words pl-2\">Allows moving-belt systems (ground simulation)<\/li><li class=\"whitespace-normal break-words pl-2\">Well-developed instrumentation<\/li><\/ul><h4 class=\"text-text-100 mt-2 -mb-1 text-base font-bold\">Vertical wind tunnels<\/h4><p>Vertical wind tunnels are characterized by an airflow that develops in an upward or downward direction, allowing the study of phenomena in which gravity and aerodynamic forces interact directly.<\/p><p class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"><strong>Characteristics: <\/strong>upward vertical flow that sustains objects in the air through drag. Highly specific applications. <\/p><p class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"><strong>Applications:<\/strong><\/p><ul class=\"[li_&amp;]:mb-0 [li_&amp;]:mt-1 [li_&amp;]:gap-1 [&amp;:not(:last-child)_ul]:pb-1 [&amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"><li class=\"whitespace-normal break-words pl-2\">Indoor skydiving training<\/li><li class=\"whitespace-normal break-words pl-2\">Free-fall simulation<\/li><li class=\"whitespace-normal break-words pl-2\">Parachute stability testing<\/li><li class=\"whitespace-normal break-words pl-2\">Microgravity experiments<\/li><\/ul><p class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"><strong>Limitaciones:<\/strong><\/p><ul class=\"[li_&amp;]:mb-0 [li_&amp;]:mt-1 [li_&amp;]:gap-1 [&amp;:not(:last-child)_ul]:pb-1 [&amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"><li class=\"whitespace-normal break-words pl-2\">Not suitable for conventional aerodynamic studies<\/li><li class=\"whitespace-normal break-words pl-2\">Very limited instrumentation<\/li><li class=\"whitespace-normal break-words pl-2\">Small market niche<\/li><li class=\"whitespace-normal break-words pl-2\">High operating costs<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-067d30a elementor-widget elementor-widget-image\" data-id=\"067d30a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"700\" height=\"400\" src=\"https:\/\/ftmtechnologies.com\/wp-content\/uploads\/2026\/01\/tunel-de-viento-segun-la-orientacion-del-flujo.jpg\" class=\"attachment-large size-large wp-image-2117\" alt=\"wind tunnel by flow orientation\" srcset=\"https:\/\/ftmtechnologies.com\/wp-content\/uploads\/2026\/01\/tunel-de-viento-segun-la-orientacion-del-flujo.jpg 700w, https:\/\/ftmtechnologies.com\/wp-content\/uploads\/2026\/01\/tunel-de-viento-segun-la-orientacion-del-flujo-300x171.jpg 300w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8d3b058 elementor-widget elementor-widget-spacer\" data-id=\"8d3b058\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d03cf58 elementor-widget elementor-widget-heading\" data-id=\"d03cf58\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Use cases by industrial sector<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b2e392d elementor-widget elementor-widget-text-editor\" data-id=\"b2e392d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Wind tunnels are used across multiple industrial sectors as a key tool to analyze, validate, and optimize the behavior of products, installations, and processes subjected to airflow. Depending on the sector, the type of test, and the tunnel configuration, they enable very different objectives to be addressed, ranging from energy efficiency improvement to operational risk reduction, regulatory compliance, or experimental validation of complex designs. <\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-678139c elementor-widget elementor-widget-text-editor\" data-id=\"678139c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h3 class=\"text-text-100 mt-2 -mb-1 text-base font-bold\">Automotive<\/h3><p>In the automotive sector, wind tunnels are used to analyze and optimize vehicle aerodynamics, reduce aerodynamic drag, and improve energy efficiency.<\/p><p class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"><strong>Optimal configuration:<\/strong><\/p><ul class=\"[li_&amp;]:mb-0 [li_&amp;]:mt-1 [li_&amp;]:gap-1 [&amp;:not(:last-child)_ul]:pb-1 [&amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"><li class=\"whitespace-normal break-words pl-2\">Closed-circuit horizontal subsonic wind tunnel<\/li><li class=\"whitespace-normal break-words pl-2\">Velocity: 10\u201370 m\/s (36\u2013252 km\/h)<\/li><li class=\"whitespace-normal break-words pl-2\">Test section: 4\u20136 m wide \u00d7 2\u20133 m high<\/li><li class=\"whitespace-normal break-words pl-2\">Moving belt system to simulate a moving ground<\/li><\/ul><p class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"><strong>Specific applications:<\/strong><\/p><ul class=\"[li_&amp;]:mb-0 [li_&amp;]:mt-1 [li_&amp;]:gap-1 [&amp;:not(:last-child)_ul]:pb-1 [&amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"><li class=\"whitespace-normal break-words pl-2\">Drag coefficient (Cx) reduction for fuel and energy consumption<\/li><li class=\"whitespace-normal break-words pl-2\">EV battery cooling<\/li><li class=\"whitespace-normal break-words pl-2\">Aerodynamic noise analysis<\/li><li class=\"whitespace-normal break-words pl-2\">Thermal management of powertrain systems<\/li><li class=\"whitespace-normal break-words pl-2\">Cabin ventilation and climate control<\/li><\/ul><p class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"><strong>Typical instrumentation:<\/strong><\/p><ul class=\"[li_&amp;]:mb-0 [li_&amp;]:mt-1 [li_&amp;]:gap-1 [&amp;:not(:last-child)_ul]:pb-1 [&amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"><li class=\"whitespace-normal break-words pl-2\">Six-component force balances<\/li><li class=\"whitespace-normal break-words pl-2\">100\u2013300 pressure taps<\/li><li class=\"whitespace-normal break-words pl-2\">Thermal manikin for comfort assessment<\/li><li class=\"whitespace-normal break-words pl-2\">Hot-wire anemometry<\/li><li class=\"whitespace-normal break-words pl-2\">Infrared thermal cameras<\/li><\/ul><h3 class=\"text-text-100 mt-2 -mb-1 text-base font-bold\">Aerospace<\/h3><p>In the aerospace sector, wind tunnels are essential for studying the aerodynamic behavior of aircraft, wings, fuselages, and critical components under different flight conditions.<\/p><p class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"><strong>optimal configuration:<\/strong><\/p><ul class=\"[li_&amp;]:mb-0 [li_&amp;]:mt-1 [li_&amp;]:gap-1 [&amp;:not(:last-child)_ul]:pb-1 [&amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"><li class=\"whitespace-normal break-words pl-2\">Closed-circuit horizontal subsonic \/ transonic \/ supersonic wind tunnel<\/li><li class=\"whitespace-normal break-words pl-2\">Subsonic: Mach 0.1\u20130.3<\/li><li class=\"whitespace-normal break-words pl-2\">Transonic: Mach 0.7\u20130.9<\/li><li class=\"whitespace-normal break-words pl-2\">Test section size variable depending on scale (1\u201310 m)<\/li><\/ul><p class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"><strong>Aplications:<\/strong><\/p><ul class=\"[li_&amp;]:mb-0 [li_&amp;]:mt-1 [li_&amp;]:gap-1 [&amp;:not(:last-child)_ul]:pb-1 [&amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"><li class=\"whitespace-normal break-words pl-2\">Airfoil validation<\/li><li class=\"whitespace-normal break-words pl-2\">Control surfaces (ailerons, flaps)<\/li><li class=\"whitespace-normal break-words pl-2\">Stability and control<\/li><li class=\"whitespace-normal break-words pl-2\">Integrated propulsion<\/li><li class=\"whitespace-normal break-words pl-2\">High-lift configurations<\/li><li class=\"whitespace-normal break-words pl-2\">Ice formation<\/li><\/ul><p class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"><strong>Instrumentation:<\/strong><\/p><ul class=\"[li_&amp;]:mb-0 [li_&amp;]:mt-1 [li_&amp;]:gap-1 [&amp;:not(:last-child)_ul]:pb-1 [&amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"><li class=\"whitespace-normal break-words pl-2\">High-precision force balances (&lt; 0.1 N)<\/li><li class=\"whitespace-normal break-words pl-2\">500\u20132000 pressure taps<\/li><li class=\"whitespace-normal break-words pl-2\">PSP (Pressure Sensitive Paint)<\/li><li class=\"whitespace-normal break-words pl-2\">PIV for 3D flow visualization<\/li><li class=\"whitespace-normal break-words pl-2\">Unsteady force measurements<\/li><\/ul><h3 class=\"text-text-100 mt-2 -mb-1 text-base font-bold\">Civil engineering<\/h3><p>In civil engineering, wind tunnels are used to analyze wind action on infrastructures such as tall buildings, bridges, towers, lightweight roofs, and singular structures. These tests allow the evaluation of aerodynamic loads, vibration effects, structural stability, and user comfort, as well as the optimization of designs against phenomena such as gusts, turbulence, or vortex shedding. <\/p><p class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"><strong>Optimal configuration:<\/strong><\/p><ul class=\"[li_&amp;]:mb-0 [li_&amp;]:mt-1 [li_&amp;]:gap-1 [&amp;:not(:last-child)_ul]:pb-1 [&amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"><li class=\"whitespace-normal break-words pl-2\">Atmospheric boundary layer wind tunnel<\/li><li class=\"whitespace-normal break-words pl-2\">Velocity: 5\u201330 m\/s (18\u2013108 km\/h)<\/li><li class=\"whitespace-normal break-words pl-2\">Large test section: minimum 3\u20135 m wide<\/li><li class=\"whitespace-normal break-words pl-2\">Turbulence generators<\/li><\/ul><p class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"><strong>Aplications:<\/strong><\/p><ul class=\"[li_&amp;]:mb-0 [li_&amp;]:mt-1 [li_&amp;]:gap-1 [&amp;:not(:last-child)_ul]:pb-1 [&amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"><li class=\"whitespace-normal break-words pl-2\">Wind loads on tall buildings<\/li><li class=\"whitespace-normal break-words pl-2\">Bridge stability (flutter, vortex shedding)<\/li><li class=\"whitespace-normal break-words pl-2\">Urban pedestrian comfort<\/li><li class=\"whitespace-normal break-words pl-2\">Lightweight and tensile roofs<\/li><li class=\"whitespace-normal break-words pl-2\">Natural ventilation<\/li><li class=\"whitespace-normal break-words pl-2\">Urban canyon effects<\/li><\/ul><p class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"><strong>Special features:<\/strong><\/p><ul class=\"[li_&amp;]:mb-0 [li_&amp;]:mt-1 [li_&amp;]:gap-1 [&amp;:not(:last-child)_ul]:pb-1 [&amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"><li class=\"whitespace-normal break-words pl-2\">Realistic atmospheric wind profiles<\/li><li class=\"whitespace-normal break-words pl-2\">Scale models from 1:100 to 1:500<\/li><li class=\"whitespace-normal break-words pl-2\">Rotating turntable for directional studies<\/li><li class=\"whitespace-normal break-words pl-2\">Gust and turbulence generation<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0d853ba elementor-widget elementor-widget-image\" data-id=\"0d853ba\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"700\" height=\"400\" src=\"https:\/\/ftmtechnologies.com\/wp-content\/uploads\/2026\/01\/tunel-de-viento-por-sector-industrial.jpg\" class=\"attachment-large size-large wp-image-2118\" alt=\"\" srcset=\"https:\/\/ftmtechnologies.com\/wp-content\/uploads\/2026\/01\/tunel-de-viento-por-sector-industrial.jpg 700w, https:\/\/ftmtechnologies.com\/wp-content\/uploads\/2026\/01\/tunel-de-viento-por-sector-industrial-300x171.jpg 300w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8391a0d elementor-widget elementor-widget-spacer\" data-id=\"8391a0d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-11abedd elementor-widget elementor-widget-heading\" data-id=\"11abedd\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">How to choose the right wind tunnel<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6722af3 elementor-widget elementor-widget-text-editor\" data-id=\"6722af3\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p data-pm-slice=\"1 1 []\">To facilitate the selection of the most suitable wind tunnel, we present a practical comparison between the different types. This table summarizes their key characteristics, advantages, and limitations based on the intended use and level of technical demand.<br> <\/p><h3 data-pm-slice=\"1 1 []\">Key differences between wind tunnel types.<\/h3><table data-pm-slice=\"3 3 []\"><tbody><tr><th>Classification type<\/th><th>Characteristic<\/th><th>Typical application<\/th><th>Advantages<\/th><th>Limitations<\/th><\/tr><tr><td>Open circuit<\/td><td>Direct flow<\/td><td>Basic laboratory<\/td><td>Cost-effective,<\/td> <td>simpleLower<\/td> flow control<\/tr><tr><td>Closed circuit<\/td><br><td>Recirculation<\/td><br><td>Automotive, R&amp;D<\/td><br><td>High precision, stable<\/td><br><td>Higher cost and complexity<\/td><\/tr><tr><td>Horizontal<\/td><br><td>Lateral airflow<\/td><br><td>Vehicles, buildings<\/td><br><td>Standard, versatile<\/td><br><td>Does not simulate free fall<\/td><\/tr><tr><td>Vertical<\/td><br><td>Upward airflow<\/td><br><td>Skydiving, microgravity<\/td><br><td>Simulates free fall<\/td><br><td>Less common<\/td><\/tr><tr><td>Subsonic<\/td><td>&lt; &lt; Mach 1<\/td><td>Cars, drones<\/td><td>Suitable for most applications<\/td><td>Does not allow supersonic studies<\/td><\/tr><tr><td>Supersonic<\/td><td>&gt; &lt; Mach 1<\/td><td>Missiles, rockets<\/td><td>Realistic high-speed conditions<\/td><td>Costly, complex<\/td><\/tr><\/tbody><\/table>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3e1a9ad elementor-widget elementor-widget-spacer\" data-id=\"3e1a9ad\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e25c54a elementor-widget elementor-widget-heading\" data-id=\"e25c54a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Advantages and limitations of different wind tunnel types<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c74fef8 elementor-widget elementor-widget-text-editor\" data-id=\"c74fef8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p data-pm-slice=\"1 1 []\">Different types of wind tunnels present specific advantages and limitations that directly influence their suitability for technical projects. Understanding these differences makes it possible to select the most appropriate option based on project objectives and specific requirements. <\/p><ul data-spread=\"false\" data-pm-slice=\"3 3 []\"><li><p><strong>Open-circuit wind tunnels <\/strong>are accessible but less precise.<\/p><\/li><li><p><strong>Closed-circuit wind tunnels<\/strong> offer higher data quality but require greater investment.<\/p><\/li><li><p><strong>Subsonic wind tunnels <\/strong>cover the majority of real-world applications.<\/p><\/li><li><p><strong>Supersonic wind tunnels<\/strong> are critical in aerospace industries.<\/p><\/li><li><p><strong>Vertical orientation <\/strong>is highly specialized but indispensable for certain tests.<\/p><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-aef4360 elementor-widget elementor-widget-image\" data-id=\"aef4360\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"586\" src=\"https:\/\/ftmtechnologies.com\/wp-content\/uploads\/2026\/01\/ventajas-desventajas-de-los-tuneles-de-viento-1024x586.jpg\" class=\"attachment-large size-large wp-image-2119\" alt=\"\" srcset=\"https:\/\/ftmtechnologies.com\/wp-content\/uploads\/2026\/01\/ventajas-desventajas-de-los-tuneles-de-viento-1024x586.jpg 1024w, https:\/\/ftmtechnologies.com\/wp-content\/uploads\/2026\/01\/ventajas-desventajas-de-los-tuneles-de-viento-300x172.jpg 300w, https:\/\/ftmtechnologies.com\/wp-content\/uploads\/2026\/01\/ventajas-desventajas-de-los-tuneles-de-viento-768x440.jpg 768w, https:\/\/ftmtechnologies.com\/wp-content\/uploads\/2026\/01\/ventajas-desventajas-de-los-tuneles-de-viento.jpg 1100w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-536f340 elementor-widget elementor-widget-spacer\" data-id=\"536f340\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-dad43fe elementor-widget elementor-widget-heading\" data-id=\"dad43fe\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Custom wind tunnels by FTM Technologies<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-66439e2 elementor-widget elementor-widget-text-editor\" data-id=\"66439e2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p data-pm-slice=\"1 1 []\">Knowing which type of wind tunnel is required involves considering both the test objective and the conditions under which it will be conducted:<\/p><ul data-spread=\"false\" data-pm-slice=\"3 3 []\"><li><p>If you are looking for preliminary or educational testing, an open-circuit subsonic wind tunnel may be sufficient.<\/p><\/li><li><p>If you need to validate designs for real vehicles or structures, a <strong>closed-circuit horizontal wind tunnel <\/strong>is preferable.<\/p><\/li><li><p>For flight simulations or extreme operating conditions, a <strong>transonic or supersonic wind tunnel<\/strong> is required.<\/p><\/li><li><p>If your project involves free-falling objects, only a <strong>vertical wind tunnel<\/strong> can fulfill that function.<\/p><\/li><\/ul><p data-pm-slice=\"1 1 []\">In all cases, working with an expert provider such as FTM Technologies, capable of <strong><a href=\"https:\/\/ftmtechnologies.com\/en\/fluid-conditioning-units\/wind-tunnels\/\">designing fully custom wind tunnels <\/a><\/strong>ensures that each installation is precisely tailored to the client\u2019s technical requirements.<br><br><br><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6869524 elementor-widget elementor-widget-spacer\" data-id=\"6869524\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-8524085 e-flex e-con-boxed e-con e-parent\" data-id=\"8524085\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-8b4d054 e-flex e-con-boxed e-con e-parent\" data-id=\"8b4d054\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-ad10b42 elementor-widget elementor-widget-heading\" data-id=\"ad10b42\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Do you need a wind tunnel tailored to your project\u2019s requirements?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c97047d elementor-widget elementor-widget-text-editor\" data-id=\"c97047d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p data-pm-slice=\"1 1 []\">At FTM Technologies, we design and implement custom wind tunnels for demanding industries.<br data-start=\"626\" data-end=\"629\"><strong data-start=\"631\" data-end=\"659\">Let\u2019s talk about your project.<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bfb6ed7 elementor-align-center elementor-mobile-align-left elementor-widget elementor-widget-button\" data-id=\"bfb6ed7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/ftmtechnologies.com\/en\/contact\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Request technical consultation<br><br><br><\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-20cff29 e-flex e-con-boxed e-con e-parent\" data-id=\"20cff29\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-8d7e020 elementor-widget elementor-widget-html\" data-id=\"8d7e020\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t\t<style>\r\n  .faq-section {\r\n    max-width: 900px;\r\n    margin: 40px auto;\r\n    font-family: 'Montserrat', sans-serif;\r\n    padding: 20px;\r\n  }\r\n\r\n  .faq-title {\r\n    font-size: 26px;\r\n    text-align: center;\r\n    color: #004b87;\r\n    margin-bottom: 30px;\r\n  }\r\n\r\n  .faq-item {\r\n    background-color: #eef9fd;\r\n    border-radius: 12px;\r\n    margin-bottom: 15px;\r\n    padding: 20px;\r\n    cursor: pointer;\r\n    transition: all 0.3s ease;\r\n    box-shadow: 0 2px 5px rgba(0,0,0,0.05);\r\n  }\r\n\r\n  .faq-item:hover {\r\n    background-color: #e4f3f8;\r\n  }\r\n\r\n  .faq-item h3 {\r\n    font-size: 18px;\r\n    font-weight: 600;\r\n    color: #1a1a1a;\r\n    margin: 0;\r\n    position: relative;\r\n    padding-right: 30px;\r\n  }\r\n\r\n  .faq-item h3::after {\r\n    content: '+';\r\n    position: absolute;\r\n    right: 0;\r\n    top: 0;\r\n    font-size: 24px;\r\n    transition: transform 0.3s ease;\r\n  }\r\n\r\n  .faq-item h3.active::after {\r\n    content: '\u2212';\r\n  }\r\n\r\n  .faq-answer {\r\n    margin-top: 15px;\r\n    font-size: 16px;\r\n    color: #333;\r\n    display: none;\r\n    line-height: 1.5;\r\n  }\r\n\r\n  .faq-answer.open {\r\n    display: block;\r\n  }\r\n<\/style>\r\n\r\n<div class=\"faq-section\">\r\n  <h2 class=\"faq-title\">Frequently Asked Questions About Wind Tunnels<\/h2>\r\n\r\n  <div class=\"faq-item\">\r\n    <h3>What is the typical size of an industrial wind tunnel?<\/h3>\r\n    <div class=\"faq-answer\">\r\n      <p>It depends on the application: compact tunnels are used for reduced-scale testing, while industrial facilities can exceed 50 meters in length to accommodate full vehicles or large structural components.<\/p>\r\n    <\/div>\r\n  <\/div>\r\n\r\n  <div class=\"faq-item\">\r\n    <h3>What instruments are used during wind tunnel testing?<\/h3>\r\n    <div class=\"faq-answer\">\r\n      <p>Pressure sensors, load cells, high-speed cameras, anemometers, and flow visualization systems are commonly deployed to capture accurate aerodynamic data during testing.<\/p>\r\n    <\/div>\r\n  <\/div>\r\n\r\n  <div class=\"faq-item\">\r\n    <h3>Is it possible to modify an existing wind tunnel?<\/h3>\r\n    <div class=\"faq-answer\">\r\n      <p>Yes. Many wind tunnels allow adjustments to the test section, airflow velocity, or instrumentation, enabling adaptation to new testing requirements without replacing the entire facility.<\/p>\r\n    <\/div>\r\n  <\/div>\r\n\r\n  <div class=\"faq-item\">\r\n    <h3>How often should wind tunnel maintenance be performed?<\/h3>\r\n    <div class=\"faq-answer\">\r\n      <p>It depends on operational intensity. High-precision closed-circuit tunnels require more frequent servicing of motors and control systems, whereas open-circuit tunnels typically demand less maintenance.<\/p>\r\n    <\/div>\r\n  <\/div>\r\n\r\n  <div class=\"faq-item\">\r\n    <h3>What is the difference between an academic and an industrial wind tunnel?<\/h3>\r\n    <div class=\"faq-answer\">\r\n      <p>Academic tunnels are designed for education and fundamental research. Industrial tunnels prioritize measurement accuracy, environmental control, and compliance with technical standards for certified testing.<\/p>\r\n    <\/div>\r\n  <\/div>\r\n\r\n  <div class=\"faq-item\">\r\n    <h3>Which company in Spain can design custom wind tunnels?<\/h3>\r\n    <div class=\"faq-answer\">\r\n      <p><strong>FTM Technologies<\/strong> specializes in the design, manufacturing, and validation of custom wind tunnels in Spain, delivering turnkey solutions for sectors such as automotive, aerospace, and civil engineering.<\/p>\r\n    <\/div>\r\n  <\/div>\r\n<\/div>\r\n\r\n<script>\r\n  document.querySelectorAll('.faq-item h3').forEach(q => {\r\n    q.addEventListener('click', () => {\r\n      q.classList.toggle('active');\r\n      q.nextElementSibling.classList.toggle('open');\r\n    });\r\n  });\r\n<\/script>\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Types of wind tunnels: classification, uses, and key differences In the field of engineering and aerodynamics, wind tunnels are facilities [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":2112,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"elementor_canvas","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"disabled","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center 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