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Guido Lodato, Patrice Castonguay and Antony Jameson Discrete filter operators for large-eddy simulation using high-order spectral difference methods International Journal for Numerical Methods in Fluids 72

Version of Record online: 24 OCT 2012 | DOI: 10.1002/fld.3740

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The development of accurate and efficient filter operators for high-order discontinuous finite element methods is generally not straightforward. In this article, two new classes of discrete filters with prescribed cutoff frequency are proposed and used in the context of similarity mixed modeling for large-eddy simulation. Validation on the canonical test case of turbulent channel flow proves the effectiveness of the proposed filters and the sub-grid scale model adopted, in the case of both Cartesian and unstructured meshes.

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