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4-Foot Supersonic Unitary Plan Wind Tunnel Characteristics

Contents

A supersonic vehicle model inside the 4-Foot wind tunnel.
Drag reduction testing on a supersonic transport design.

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Characteristics
Quick Facts
Data Acquisition
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Characteristics

  • Test section size: 4 ft high by 4 ft wide by 7 ft long
  • Mach Range:
    Test Section 1: 1.5 – 2.9
    Test Section 2: 2.3 – 4.6
  • Reynolds Number:
    Test Section 1: 0.5 to 11×106 per ft
    Test Section 2: 0.5 to 8.25×106 per ft
  • Temperature: 125 to 175°F
  • Test Gas: Dry Air
  • Drive Power: 100,000 hp

Test Techniques

  • Static Aerodynamics: Six component internal strain gauge balances, discrete force / moment strain gauge bridges
  • Discrete Pressure: Low / high frequency sensing
  • Global Pressure: Pressure Sensitive Paint
  • Discrete Temperature: Thermocouple, RTD, Thin Film
  • Global Temperature: Infrared, Temperature Sensitive Paint
  • Surface Diagnostic: Oil flow visualization (UV or colored), mini-tufts, sublimation
  • Flowfield Diagnostic: Schlieren, laser vapor screen

AETC Supersonic Facilities

AETC Ground Facilities

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Last Updated
Jul 26, 2023
Editor
Lillian Gipson
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