Wall shear stress measurements in the plane of symmetry of a turbulent spot |
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| Authors: | T. S. Mautner C. W. Van Atta |
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| Affiliation: | (1) Naval Ocean Systems Center, 92152-5000 San Diego, CA, USA;(2) Scripps Institution of Oceanography and Department of Applied Mechanics and Engineering Sciences, University of California, 92093 San Diego, La Jolla, CA, USA |
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| Abstract: | Wall shear stress measurements were made in the plane of symmetry of turbulent spots. When represented in terms of the skin friction coefficient versus momentum thickness Reynold's number, the spot's wall shear distribution is composed of four linear segments each having a different slope. The spot's zone averaged wall shear stress is approximately equal to the zone averaged Reynolds's stress distribution in a spot while the ensemble mean wall shear is 10%–15% lower than that found in a turbulent boundary layer. |
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