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Laser skin friction measurements and CFD comparison of weak-to-strong swept shock/boundary-layer interactionsA joint experimental and computational study of skin friction in weak-to-strong swept shock wave/turbulent boundary-layer interactions has been carried out. A planar shock wave is generated by a sharp fin at angles of attack alpha = 10 deg and 16 deg at M(infinity) = 3 and 16 and 20 deg at M(infinity) = 4. Measurements are made using the Laser Interferometer Skin Friction meter, which optically detects the rate of thinning of an oil film applied to the test surface. The results show a systematic rise in the peak c(f) at the rear part of the interaction, where the separated flow atttaches. For the stronget case studied, this peak is an order of magnitude higher than the incoming freestream c(f)level.
Document ID
19900035154
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Kim, K.-S.
(Pennsylvania State Univ. University Park, PA, United States)
Lee, Y.
(Pennsylvania State Univ. University Park, PA, United States)
Alvi, F. S.
(Pennsylvania State Univ. University Park, PA, United States)
Settles, G. S.
(Pennsylvania State University University Park, United States)
Horstman, C. C.
(NASA Ames Research Center Moffett Field, CA, United States)
Date Acquired
August 14, 2013
Publication Date
January 1, 1990
Subject Category
Aerodynamics
Report/Patent Number
AIAA PAPER 90-0378
Accession Number
90A22209
Funding Number(s)
CONTRACT_GRANT: AF-AFOSR-86-0082
CONTRACT_GRANT: NCA2-192
Distribution Limits
Public
Copyright
Other

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