Abstract
Experiments have been conducted in the new anechoic flow facility at the Naval Ship Research and Development Center on the flow noise feature of the transition boundary layer on a flat plate. Measurements were made of the pressure fluctuations in the intermittent region of a naturally developing transition boundary layer over a 14 ft long flat plate in a mild accelerated flow. Results are reported of the power and cross-spectral density of the pressure field of the intermittent turbulent spots, as a function of the intermittency factor. The average burst length, burst frequency, and burst convection velocity are also computed from the data and compared with those of related studies.
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