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Towards a Renormalized Lattice Boltzmann Equation for Fluid Turbulence |
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| Authors: | S Succi O Filippova H Chen S Orszag |
| Institution: | (1) Istituto Applicazioni Calcolo  M. Picone, , Viale Policlinico 137, I-00161 Rome, Italy;(2) Institute of Combustion and Gas Dynamics, University of Duisburg, D-47048 Duisburg, Germany;(3) EXA Corporation, Bedford Road 450, Lexington, Massachusetts, 02420;(4) Mathematics Department, Yale University, New Haven, Connecticut, 06520 |
| Abstract: | A coarse-grained Lattice Boltzmann equation is examined in which the effects of unresolved (subgrid) scales are formally incorporated within a renormalized relaxation time of the collision operator. Actual values of the renormalized relaxation time are analyzed for the practical case of high-Reynolds flows past slant bodies (airfoils). |
| Keywords: | lattice Boltzmann renormalization group multiscale computing |
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