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Seeing through flows in Langley's 0.3-meter Transonic Cryogenic Tunnel

Walter L. Snow, Alpheus W. Burner, William K. Goad

Abstract

Viewing problems associated with the measurement of model deformation in cryogenic wind tunnels are discussed. Tests were conducted in the Langley 0.3-Meter Transonic Cryogenic Tunnel to assess viewing capabilities thru the flow field. The effects of condensation and turbulent boundary layers are discussed and a modelling procedure for image degradation is described.

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Key concepts: Transonic, Wind tunnel, Turbulence, Metre, Aerospace engineering, Flow (mathematics), Mechanics, Meteorology