Performance of Reynolds-Averaged Turbulence Models for Transonic Flow around Airfoil

Fluid Mechanics Laboratory, Department of Aeronautics and Astronautics,

Kyushu University, Fukuoka, 819-0395, Japan

Keywords: Reynolds-Averaged Turbulence Model, Compressible flow, Transonic Flow

Abstract

Reynolds-Averaged Navier-Stokes (RANS) simulation continues to constitute the principal approach for representing the effects of turbulence in the prediction of engineering flows. One issue that has been the subject of much attention is the wall-limiting behavior returned by low-Reynolds-number forms that are designed to be applicable across the viscous sublayer, down to the wall.

The present study is a contribution to the ongoing search for better RANS models. In this study, several RANS models are investigated, including some recently-developed non-linear eddy-viscosity models. To examine the model performance for compressible flow applications, they are applied to a transonic flow around an airfoil. Sample results are shown in Fig. 1. The obtained results are compared with the corresponding experimental data by Schmitt and Charpin[1].

More detailed discussion is given in the reference paper[2].

References

[1] V. Schmitt. and F. Charpin, Pressure Distributions on the ONERA-M6-Wing at Transonic Mach Numbers, Experimental Data Base for Computer Program Assessment, Report of the Fluid Dynamics Panel Working Group 04, AGARD AR 138, May 1979.

[2] Kentaro HARA and Ken-ichi ABE, Performance of Reynolds-Averaged Turbulence Models for Transonic Flow around Airfoil, Progress in Computational Fluid Dynamics, Vol. 8, pp. 447-453, 2008.

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Department of Aeronautics and Astronautics, Kyushu University.