On the Large Eddy Simulation of the Taylor–Green vortex

Abstract.In this paper we analyze the role of the Taylor–Green vortex in the study of some Large Eddy Simulation models. More precisely, we consider such a particular flow in connection with the Gradient model and the Rational model. In particular, we study: 1) the mechanism of small scale generation; 2) the symmetries of the flow and their role in the Spectral Galerkin approximation; 3) the connection between pressure fluctuations and quadratic mean velocity.

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