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Record Details

Record 46 of 4695
Effect of velocity ratio on plane mixing layer development - Influence of the splitter plate wake
External Online Source: doi:10.1007/BF00190389
Author and Affiliation:
Mehta, R. D.(NASA Ames Research Center, Moffett Field)
Abstract: The effect of the velocity ratio on the approach of a plane mixing layer to self-similarity was investigated experimentally. In the experiment, plane mixing layers with velocity ratios 0.5, 0.6, 0.7, 0.8, and 0.9 were generated in a mixing-layer wind tunnel consisting of two individually driven legs, in which the two streams were allowed to merge at the sharp edge of a tappered splitter plate. The leg driven by the bigger blower was operated at a free-stream velocity in the test section of 21 m/s, while the flow speed in the other leg was varied to change the velocity ratio. For each velocity ratio, the mean flow- and turbulence measurements were carried out at eight streamwise locations. Results showed that, for velocity ratios between 0.5 and 0.7, self-similarity of the mixing layer was achieved, with the asymptotic states comparable; mixing layers with higher velocity ratios failed to achieve a self-similar state within the measurement domain.
Publication Date: Jan 01, 1991
Document ID:
19910042336
(Acquired Nov 28, 1995)
Accession Number: 91A26959
Subject Category: FLUID MECHANICS AND HEAT TRANSFER
Document Type: Journal Article
Publication Information: Experiments in Fluids (ISSN 0723-4864); 10; 4, Ja
Publisher Information: Germany
Contract/Grant/Task Num: NCC2-55
Financial Sponsor: NASA; United States
Organization Source: NASA Ames Research Center; Moffett Field, CA, United States
Stanford Univ.; CA, United States
Description: 11p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: FLOW VELOCITY; MIXING LAYERS (FLUIDS); TURBULENT WAKES; VELOCITY MEASUREMENT; WIND TUNNEL TESTS; BOUNDARY LAYER FLOW; TURBULENT MIXING; VELOCITY DISTRIBUTION
Imprint And Other Notes: Experiments in Fluids (ISSN 0723-4864), vol. 10, no. 4, Jan. 1991, p. 194-204.
Availability Source: Other Sources
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