Experimental and numerical investigation on shockwave / turbulent boundary layer interaction

Conference paper (2012)

Authors

M. Grilli Technische Universität München
Lin Strobio Chen Technische Universität München
S. Hickel Technische Universität München
Nikolaus A. Adams Technische Universität München
Sebastian Willems Deutsches Zentrum für Luft- und Raumfahrt e.V. (DLR)
Ali Gülhan Deutsches Zentrum für Luft- und Raumfahrt e.V. (DLR)
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Published Date

01-12-2012

Language

English

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Abstract

We report on an experimental and computational effort to study the interaction of a compressible turbulent boundary layer with an oblique shock wave. A wide range of shock intensities has been considered in the experiments through a variation of the free-stream Mach number. Detailed mean flow and surface measurements have been carried out for the Ma = 3 configuration together with the employment of a high-speed Schlieren technique. A series of numerical computations have been also carried out in order to highlight the main features of the flow. Reynolds averaged Navier-Stokes computation have been performed on both 2-D and 3-D configurations showing the influence of three-dimensional effects on the considered flow. A detailed Large Eddy Simulation has been performed on the Ma = 3 configuration in order to investigate the unsteady features of the shock boundary layer interaction phenomenon.