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The effect of oscillating flow on the turbulent intensity
distribution in the turbulent boundary layer on a flat plate was
investigated experimentally. A wind tunnel incorporating a set of rotating shutter blades
downstream of the test section was used to create oscillating flow
with amplitude variations from 6 to 110 per cent of mean velocity
and frequencies ranging from 5 to 80 cycles per second at a local
Reynolds number of 1.5 x 10 to the 6th. A vertical traverse of the turbulent
boundary layer was conducted with a hot wire anemometer, and the
mean velocity profile and the turbulent intensity distribution
were recorded. Results indicate that there is no radical effect on the turbulent
intensity distribution in the boundary layer due to frequency or
amplitude changes in the oscillating freestream flow.http://archive.org/details/intensitydistrib1094512363Ensign, United States Nav
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