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Fourth International Symposium on Turbulence and Shear Flow Phenomena
June, 27-29, 2005, Marriot Hotel, Williamsburg, Virginia, USA

DOI: 10.1615/TSFP4

CHARACTERIZATION OF TURBULENT FLOW DOWNSTREAM OF A THREE-DIMENSIONAL AXISYMMETRIC BUMP

pages 1171-1176
DOI: 10.1615/TSFP4.1950
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要約

The downstream wake development from a high momentum thickness Reynolds number ( Reθ ~7300) boundary layer flow over an axisymmetric bump (with circular base) of height H = 2δ is experimentally studied using a four-sensor hot-wire probe. Three-component mean velocity, turbulence, velocity spectra, and two-point correlation measurements were made behind the bump within a distance from x/H =2.62 to 6.59 to fully document the turbulent flow structure and its streamwise evolution. Mean flow development, structure and decay of the turbulence, the contribution and distribution of low frequency turbulence fluctuations are presented.

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