Abstract
Traditional Large-Eddy Simulation (LES) provides good results on standard benchmark turbulent flows, but engineering applications of more complex geometries are restricted. This is mainly due to the physical hypotheses of homogeneity, isotropy, or local equilibrium of the subgrid-scale models, which are questionable in more realistic configurations. In an attempt to overcome those problems, the recent notion of Very Large-Eddy Simulation (VLES) has been developed. LES is based on an equation filtering theory, actually governed by the modeling terms the influence of which on the flow dynamics is not well described. It appears essential to qualify these built-in filters of LES models before performing coarse mesh/high Reynolds number computations. This work is an assessment of previous theoretical studies on LES filters and kinetic energy spectra.
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Magnient, JC., Sagaut, P., Deville, M. (1999). A study of built-in filter for some eddy viscosity models in large-eddy simulation. In: Biringen, S., Örs, H., Tezel, A., Ferziger, J.H. (eds) Industrial and Environmental Applications of Direct and Large-Eddy Simulation. Lecture Notes in Physics, vol 529. Springer, Berlin, Heidelberg. https://doi.org/10.1007/BFb0106101
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DOI: https://doi.org/10.1007/BFb0106101
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