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On investigation of particle dispersion by a POD approach

Abstract : The aim of this communication is to show the ability of POD to compute the instantaneous flow velocity when applying the Lagrangian technique to predict particle dispersion. The instantaneous flow velocity at the particle's location is obtained by solving a low-order dynamical model, deduced by a Galerkin projection of the Navier-Stokes equations onto each POD eigenfunction and it is coupled with the particle's equation of motion. This technique is applied to particle dispersion in a three-dimensional lid driven cavity. It yields a substantial decrease in computing time in comparison with LES computation and it enables treating different cases of particle dispersion
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Submitted on : Tuesday, August 31, 2021 - 2:23:41 PM
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Cyrille Allery, Claudine Beghein, Aziz Hamdouni. On investigation of particle dispersion by a POD approach. International Applied Mechanics, Springer Verlag, 2008, 44 (1), pp.110-119. ⟨10.1007/s10778-008-0025-2⟩. ⟨hal-00404055⟩



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