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A critique of some recent second-order turbulence closure models for compressible boundary layersComputations based on two recently developed second-order turbulence closure models are compared with a series of boundary-layer experiments and with predictions of these experiments using an algebraic mixing length model. One of the models employs an eddy viscosity, whereas the other evaluates components of the Reynolds stress tensor. For flat plates, the computations are compared with the van Driest skin-friction transformation to assess the handling of compressibility. For boundary layers in pressure gradients, four experiments at Mach 4 and one at Mach 6.7 are used as the bases for comparison. In general, both models represent mean velocities and skin friction reasonably well, but represent the turbulence shear stress less accurately.
Document ID
19770036993
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Rubesin, M. W.
(Informatics-PMI, Inc. Palo Alto, CA, United States)
Crisalli, A. J.
(Informatics-PMI, Inc. Palo Alto, CA, United States)
Horstman, C. C.
(Informatics-PMI, Inc. Palo Alto, CA, United States)
Acharya, M.
(NASA Ames Research Center Moffett Field, Calif., United States)
Lanfranco, M. J.
(Informatics-PMI Palo Alto, Calif., United States)
Date Acquired
August 9, 2013
Publication Date
January 1, 1977
Subject Category
Aerodynamics
Report/Patent Number
AIAA PAPER 77-128
Meeting Information
Meeting: Aerospace Sciences Meeting
Location: Los Angeles, CA
Start Date: January 24, 1977
End Date: January 26, 1977
Sponsors: American Institute of Aeronautics and Astronautics
Accession Number
77A19845
Distribution Limits
Public
Copyright
Other

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