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Optical studies of shock generated transient supersonic base flowsA shock tube employing interferometric and schlieren techniques is used to study transient base flow phenomena following shock wave passage over two plane bluff bodies: a hemicircular cylinder and a cylinder with the Galileo Jovian probe profile. An attempt is made to understand the physics of transition from transient to steady state flow, and to provide code verification for a study employing the Illiac IV computer. Transient base flow interactions include a series of shock diffraction, regular, and Mach reflections, coupled with boundary layer development, separation, and recompression. Vorticity generation and transport underlie these features. The quantitative verification of the computer code includes comparisons of transient pressure and density fields, near wake geometries, and bow shock standoff distances.
Document ID
19830044924
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Liang, P.-Y.
(Stanford Univ. CA, United States)
Bershader, D.
(Stanford University Stanford, CA, United States)
Wray, A.
(NASA Ames Research Center Moffett Field, CA, United States)
Date Acquired
August 11, 2013
Publication Date
January 1, 1982
Subject Category
Aerodynamics
Meeting Information
Meeting: Shock tubes and waves; Thirteenth International Symposium
Location: Niagara Falls, NY
Start Date: July 6, 1981
End Date: July 9, 1981
Accession Number
83A26142
Funding Number(s)
CONTRACT_GRANT: NCC2-10
Distribution Limits
Public
Copyright
Other

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