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A dynamic localization model for large-eddy simulation of turbulent flows. (English) Zbl 0837.76032
A new method is proposed for computing coefficients of subgrid-scale eddy viscosity models as a function of space and time. The new formulation leads to an integral equation whose solution yields the model coefficient as a function of position and time. The method can be applied to general inhomogeneous flows and does not suffer from the mathematical inconsistencies. The model has been tested in isotropic turbulence and in the flow over a backward-facing step.

MSC:
76F65 Direct numerical and large eddy simulation of turbulence
76F05 Isotropic turbulence; homogeneous turbulence
76F10 Shear flows and turbulence
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