27th Congress of International Council of the Aeronautical Sciences, 19 - 24 September 2010, Nice, France
Paper ICAS 2010-2.5.2

THE EFFECT OF UNSTRUCTURED GRID TOPOLOGY AND RESOLUTION ON SIMULATIONS OF DECAYING TURBULENCE

C. M. Winkler, A. J. Dorgan, M. Mani
The Boeing Company, USA

Keywords: isotropic turbulence, detached eddy simulation

The effect of grid topology and resolution is studied for decaying, homogenous isotropic turbulence using unstructured hexahedral and tetrahedral grids using an industrial CFD code. Several key statisitics are compared to available experiments. Results show a wide range of behavior with variation in model coefficient, grid resolution, and differencing scheme.

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