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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 |
| Affiliation: | (1) Istituto Applicazioni Calcolo !["ldquo"]("/content/qq37pm6y1vw2mp10/xlarge8220.gif") M. Picone,!["rdquo"]("/content/qq37pm6y1vw2mp10/xlarge8221.gif") , 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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