Fluid Mechanics and Acoustics Laboratory - UMR 5509

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Lyon
France


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Home > Teams > Turbulence & Instabilities > Publications T&I > Publications T&I 2017

Article in Europhys. Lett. (2017)

Central-moments–based lattice Boltzmann schemes with force-enriched equilibria

Alessandro De Rosis

Central-moments–based lattice Boltzmann schemes with force-enriched equilibria

This paper presents a numerical scheme to account for external forces in the central-moments–based lattice Boltzmann method. Instead of deriving additional forcing operators, here we propose to incorporate forces directly in the equilibrium populations. The resultant concise methodology is validated against established well-defined problems admitting analytical solution, showing very good accuracy and convergence rate. Moreover, it outperforms the classical BGK kernel in terms of stability.
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