Subsonic Wind Tunnel

About Subsonic Wind Tunnel

Marketing Overview

Our Subsonic Wind Tunnel systems are designed for precise aerodynamic testing in the low-to-moderate speed regime. Operating in the Mach range below compressibility-dominant conditions, these tunnels provide stable, uniform airflow ideal for aerodynamic performance evaluation, flow visualization, and force measurement.

Built on proven low-speed wind tunnel principles with enhanced power capacity, the system ensures improved flow control and higher velocity capability while maintaining low turbulence and high accuracy. Modular configurations and customizable test sections make it suitable for aerospace, automotive, and industrial research applications.

Technical Datasheet (Generalized Ranges)

1. System Classification

• Mach Number Range: 0.4 0.7
• Flow Regime: Subsonic

2. Test Section Specifications

• Type: Open or Closed
• Shape: Rectangular / Circular / Elliptical
• Cross-Section Area: 0.1 m 50 m
• Length: 1 m 20 m

3. Flow Performance

• Velocity Range: ~120 m/s 240 m/s
• Velocity Uniformity: 0.5% 1%
• Turbulence Intensity: < 0.2% 0.8%

4. Operating Characteristics

• Flow Nature: Incompressible to mildly compressible
• Reynolds Number: Up to 10 10+
• Energy Efficiency: Comparable to low-speed tunnels with higher power demand

5. Drive System

• Fan Type: Axial / Mixed-flow
• Motor Power Range: 50 kW 5 MW
• Control: Variable Frequency Drive (VFD)

6. Key Components

• Inlet and settling chamber
• Honeycomb and flow straighteners
• Contraction cone
• Test section
• Diffuser
• Drive fan and motor system

7. Instrumentation (Optional)

• Velocity measurement (Pitot tubes, anemometers)
• Pressure measurement systems
• Force and moment balances
• Flow visualization tools (smoke, tufts)
• Data acquisition system (DAQ)

8. Applications

• Aircraft and air foil testing
• Automotive aerodynamics
• Industrial product testing
• Flow visualization studies
• Academic and R&D use

9. Customization Options

• Test section dimensions and geometry
• Maximum velocity range
• Open or closed circuit configuration
• Instrumentation packages
• Multi-test section configurations