Closed Circuit Subsonic Wind Tunnels Manufacturer,Supplier and Exporter in India
Product Code : EL-EELE-11358
Quick Answer: Closed Circuit Subsonic Wind Tunnels are recirculating tunnels for aerodynamics teaching, with transparent test sections for flow visualisation and a velocity range of 2 to 40 m/s.
Last updated: October 2026
Key Features
Closed circuit with axial fan, diffuser and round-to-square transition sections, joined by flexible sleeves.
Transparent test sections for full flow visualisation and the use of laser anemometry.
Corner guide vanes to avoid separation and keep a satisfactory pressure distribution.
Velocity range 2 to 40 m/s with uniform velocity distribution in the test section.
Models, aerofoils and a balance mount through the top panel; probe passages on the front side panel.
Single or multi-axis probe traversing systems can be fitted.
Technical Specifications
| Specification | Value |
|---|---|
| Velocity range | 2 to 40 m/s (both versions) |
| Test section, larger version | 300 x 300 mm, 700 mm long |
| Test section, smaller version | 300 x 200 mm, 600 mm long |
| Contraction ratio | 8 (larger) / 4 (smaller) |
| Turbulence level at 40 m/s | Below 0.5 % (larger) / below 0.8 % (smaller) |
| Overall dimensions | 4420 x 1420 x 2100 mm / 3000 x 700 x 1500 mm |
| Power requirement | 7.5 kW / 3 kW |
| Weight (approx.) | 450 kg / 250 kg |
About This Product
Students mount aerofoils and other models with a balance through the top panel and insert pitot tubes or hot-wire probes through the side panel to measure the flow around them. Shaped contractions give an even velocity profile in the test section, which suits fundamental experiments in aerodynamics.
Frequently Asked Questions
What sizes are available?
Two versions are listed: one with a 300 x 300 mm test section 700 mm long (overall 4420 x 1420 x 2100 mm, 7.5 kW, about 450 kg) and one with a 300 x 200 mm section 600 mm long (3000 x 700 x 1500 mm, 3 kW, about 250 kg).
What can be fitted in the test section?
Models, aerofoils, balances and probes such as pitot tubes and hot wires, together with single or multi-axis probe traversing systems.
What is the velocity range?
2 to 40 m/s for both versions. Turbulence at 40 m/s is given as below 0.5 % for the larger version and below 0.8 % for the smaller one.
Related: Electronics Engineering Lab Equipments, Flow Visualisation Wind Tunnel.
For a quotation on the Closed Circuit Subsonic Wind Tunnels, contact Educational Lab Equipments.
