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Turbulence and Shear Flow Phenomena -1 First International Symposium

ISBN Print: 1-56700-135-1

INVESTIGATION OF THE RENORMALIZATION GROUP USING NUMERICAL SIMULATIONS OF TURBULENCE

Abstract

We consider the possibility of obtaining an eddy-viscosity for large-eddy simulations by applying Renormalization-Group methods to the Navier-Stokes equation. We outline how the introduction of a conditional averaging procedure may allow us to perform such a calculation as an approximation, and look at how the results of direct numerical simulations can be used to test the assumptions made therein. Finally, we examine and discuss the results obtained by performing a large-eddy simulation using the resulting eddy-viscosity.
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