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Influence of inflow turbulence in shock-wave/turbulent-boundary-layer interaction computations

By G.A. Gerolymos, Emilie Sauret and I. Vallet


The influence of inflow turbulence on the results of Favre–Reynolds-averaged Navier–Stokes computations of\ud supersonic oblique-shock-wave/turbulent-boundary-layer interactions (shock-wave Mach-number MSW ∼2.9),\ud using seven-equation Reynolds-stress model turbulence closures, is studied. The generation of inflow conditions\ud (and the initialization of the flowfield) for mean flow, Reynolds stresses, and turbulence length scale, based on\ud semi-analytic grid-independent boundary-layer profiles, is described in detail. Particular emphasis is given to\ud freestream turbulence intensity and length scale. The influence of external-flow turbulence intensity is studied in\ud detail both for flat-plate boundary-layer flow and for a compression-ramp interaction with large separation. It is\ud concluded that the Reynolds-stress model correctly reproduces the effects of external flow turbulence

Publisher: American Institute of Aeronautics and Astronautics
Year: 2004
DOI identifier: 10.2514/1.2257
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