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Skin friction and heat transfer correlations for high-speed low-density flow past a flat plateThe independent and dependent variables associated with drag and heat transfer to a flat plate at zero incidence in high-speed, rarefied flow are analyzed anew to reflect the importance of kinetic effects occurring near the plate surface on energy and momentum transfer, rather than following arguments normally used to describe continuum, higher density flowfields. A new parameter, the wall Knudsen number Knx,w, based on an estimate of the mean free path length of molecules having just interacted with the surface of the plate, is introduced and used to correlate published drag and heat transfer data. The new parameter is shown to provide better correlation than either the viscous interaction parameter X or the widely-used slip parameter Voo for drag and heat transfer data over a wide range of Mach numbers, Reynolds numbers, and plate-to-freestream stagnation temperature ratios.
Document ID
19910058763
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Woronowicz, Michael S.
(Stanford Univ. CA, United States)
Baganoff, Donald
(Stanford University CA, United States)
Date Acquired
August 15, 2013
Publication Date
June 1, 1991
Subject Category
Fluid Mechanics And Heat Transfer
Report/Patent Number
AIAA PAPER 91-1314
Accession Number
91A43386
Funding Number(s)
CONTRACT_GRANT: NCA2-495
CONTRACT_GRANT: AF-AFOSR-90-0232
Distribution Limits
Public
Copyright
Other

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