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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

THREE-DIMENSIONAL EFFECTS IN COMPRESSIBLE OPEN CAVITY FLOWS

pages 1019-1024
DOI: 10.1615/TSFP4.1690
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要約

Direct numerical simulation (DNS) is carried out to study the compressible flow over a fully three-dimensional open cavity, which has a length-to-depth ratio L/D = 5 and width-to-depth ratio W/D = 1. The Mach number of the incoming flow is M = 0.85, and the Reynolds number based on the cavity depth is ReD = 5000. The unsteady flow dynamics is analyzed, focusing on the cross-stream flow patterns, unlike previous studies. The implication for sound generation in the cross-stream direction is discussed. The DNS database contains Reynolds averaged quantities as well as instantaneous ones, making it valuable for model development and validation.

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