Spanwise structure of wall pressure on a cylinder in axial flow

  title={Spanwise structure of wall pressure on a cylinder in axial flow},
  author={Arun L. W. Bokde and Richard M. Lueptow},
The spanwise structure of wall pressure fluctuations was measured in an axisymmetric turbulent boundary layer on a cylinder parallel to the mean flow at a momentum thickness Reynolds number of 2530 and a boundary layer thickness to cylinder radius ratio of 4.81. The measurements were made using miniature hearing aid type condenser microphones with spanwise separations of 0°, 10°, 20°, 30°, 60°, and 90°. An improved wall pressure power spectrum was obtained at low frequencies by utilizing a two… CONTINUE READING
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