Large Wind Tunnel

About Large Wind Tunnel

A high-speed, low-noise wind tunnel engineered for advanced aero-acoustic research, precision measurements, and testing of large-scale components under controlled, high-Reynolds-number flow conditions.

  Facility Overview

• Type: Acoustically Optimised Large-Scale Wind Tunnel
• Application: Aero-acoustics, aerodynamic R&D, sensor calibration, industrial and scientific testing
• Design Focus: Ultra-low turbulence and minimized acoustic interference

 Test Section Configurations

1. Closed Test Section

• Dimensions (W H L): 2.75 1.25 5.0 m
• Maximum Velocity: up to 100 m/s
• Use Case: High-speed, controlled aerodynamic and aero-acoustic measurements

2. Open Test Section

• Dimensions (W H L): 4.0 2.8 12.0 m
• Maximum Velocity: up to 40 m/s
• Use Case: Large models, realistic flow interaction, and acoustic studies

 Flow Characteristics

• Maximum Flow Speed: up to 100 m/s
• Reynolds Number: up to 6 10 (based on ~900 mm chord)
• Turbulence Intensity: 0.05% (205000 Hz range)
• Velocity Uniformity: V 0.5%

 Measurement & Instrumentation

• Redundant Measurement Systems:
• Surface and wall pressure
• Force balance systems
• Wake rake analysis
• 360 Polar Measurements:
• Up to Re 1.5 10
• Thermographic Analysis:
• Laminarturbulent transition detection
• Output in absolute x/c coordinates
• Remote Monitoring:
• Real-time data access and online test supervision

 Utilities

• Installed Electrical Power: ~1 MW

 Key Features

• Acoustically optimized design for precise aero-acoustic measurements
• Dual test-section flexibility for both high-speed and large-scale testing
• Extremely low turbulence for high-fidelity data
• Suitable for calibration of high-speed sensors and instrumentation
• Supports both industrial R&D and advanced scientific research