Flow Viz Tunnel

About Flow Viz Tunnel

Overview

An advanced flow visualization wind tunnel designed for hands-on aerodynamic learning and demonstration. Using laminar airflow and vapor-based streaklines, the system allows students to visually observe airflow behavior over airfoils, cylinders, and other models in real time.

Ideal for both group demonstrations and interactive experiments, the tunnel enables direct observation of flow patterns, separation, and aerodynamic effects.

Key Features

• Real-Time Flow Visualization: Vapor streaklines for clear airflow patterns
• Laminar Flow Design: High-quality, low-turbulence airflow
• Interactive Learning: Adjustable models and flow conditions
• Instant Operation: No warm-up required
• Integrated Lighting & Viewing System

Technical Datasheet (Typical)

Wind Tunnel Dimensions

• Length: 1.35 m (53 in)
• Height: 0.72 m (28.5 in)
• Width: 0.43 m (17 in)

Cabinet Dimensions

• Height: 0.94 m (37 in)
• Width: 1.16 m (45.5 in)
• Depth: 0.61 m (24 in)

Power Requirements

• Supply: 115 VAC, 60 Hz
• Current: 15 A (transformer required for international use)

 Flow System

• Flow Type: Laminar (low turbulence)
• Blower: Downstream centrifugal blower
• Speed Control: Infinitely variable via control knob

Flow Conditioning

• Contraction Section: High area ratio for smooth acceleration
• Honeycomb Straightener:
• ~7700 hexagonal cells
• Cell size: ~3 mm (1/8 in)
• Length: ~178 mm (7 in)
• Aspect Ratio: ~56

Visualization System

• Medium: Ultrasonic water vapor (streaklines)
• Streakline Spacing: ~6.35 mm (0.25 in)
• Injection: Multi-point vapor rake
• Purge System: Removes condensation during extended use

Construction

• Frame: Anodized aluminium structure
• Panels: Clear and opaque acrylic
• Viewing Area: Transparent test section with black background
• Lighting: Integrated fluorescent illumination (top & bottom)
• Access: Hinged rear panel for model installation

Control & Operation

• Adjustable Parameters:
• Airspeed
• Model angle of attack
• Additional Controls:
• Vacuum/blowing via external pump
• Manual valve Regulation

Demonstration Models (Typical)

• Venturi Model: Flow acceleration in converging ducts
• Rotating Cylinder: Demonstrates Magnus effect
• Airfoils & Cylinders: Flow separation and lift visualization

Applications

• Aerodynamics education and lab demonstrations
• Flow visualization and qualitative analysis
• Boundary layer and separation studies
• Interactive student experimentation

Optional Features

• Additional models and accessories
• Compressor/vacuum integration
• Custom configurations
• Handcrafted custom models and probes

Customization

The system can be tailored for specific educational or laboratory requirements, including model sets, instrumentation, and layout.