A crossed hot-wire technique for complex turbulent flows |
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Authors: | A. D. Cutler P. Bradshaw |
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Affiliation: | (1) Department of Aeronautics Imperial College of Science and Technology, SW7 2BY London, GB;(2) Present address: The George Washington University JIAFS, M.S. 269, NASA, 23665 Hampton, VA, USA |
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Abstract: | This paper describes a crossed hot-wire technique for the measurement of all components of mean velocity, Reynolds stresses, and triple products in a complex turbulent flow. The accuracy of various assumptions usually implicit in the use of crossed hot-wire anemometers is examined. It is shown that significant errors can result in flow with gradients in mean velocity or Reynolds stress, but that a first order correction for these errors can be made using available data. It is also shown how corrections can be made for high turbulence levels using available data. |
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