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Record Details

Record 43 of 15134
Skin friction and Reynolds stress measurements for a turbulent boundary layer following manipulation using flat plates
Author and Affiliation:
Westphal, R. V.(NASA Ames Research Center, Moffett Field, CA, United States)
Abstract: Research has been undertaken to experimentally study the alterations in turbulent boundary-layer properties due to turbulence manipulation using thin flat plates. Plate geometry and placement within the boundary layer were selected to coincide with recent studies. Direct, local measurements of skin friction and Reynolds stresses were made within the boundary layer downstream of the manipulator devices for cases with an approach momentum thickness Reynolds number of 3700. A strong tendency for recovery of the Reynolds stresses was observed, accompanied by local skin-friction reductions of up to 15 percent. The mean velocity profile in the manipulated flow displayed the same similarity shape in the logarithmic region as a natural boundary layer, but had an enhanced wake component. The results indicate that the plate wake plays an important role in the boundary layer response to this sort of manipulation.
Publication Date: Jan 01, 1986
Document ID:
19860035054
(Acquired Nov 28, 1995)
Accession Number: 86A19792
Subject Category: FLUID MECHANICS AND HEAT TRANSFER
Report/Patent Number: AIAA PAPER 86-0283
Document Type: Preprint
Publisher Information: United States
Financial Sponsor: NASA; United States
Organization Source: NASA Ames Research Center; Moffett Field, CA, United States
Description: 10p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: FLAT PLATES; FRICTION MEASUREMENT; REYNOLDS STRESS; SKIN FRICTION; STRESS MEASUREMENT; TURBULENT BOUNDARY LAYER; THIN PLATES; WIND TUNNEL TESTS
Imprint And Other Notes: AIAA, Aerospace Sciences Meeting, 24th, Reno, NV, Jan. 6-9, 1986. 10 p.
Availability Source: Other Sources
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