Entropic lattice Boltzmann method for turbulent flow simulations: Boundary conditions

S.S. Chikatamarla and I.V. Karlin

Physica A: Statistical Mechanics and its Applications, 2013, vol. 392, issue 9, 1925-1930

Abstract: We introduce a new concept of boundary conditions for realization of the lattice Boltzmann simulations of turbulent flows. The key innovation is the use of a universal distribution function for particles, analogous to the Tamm–Mott-Smith solution for the shock wave in the classical Boltzmann kinetic equation. Turbulent channel flow simulations demonstrate that the new boundary enables accurate results even with severely under-resolved grids. Generalization to complex boundary is illustrated with an example of turbulent flow past a circular cylinder.

Keywords: Entropic lattice Boltzmann method (ELBM); Complex boundaries; Turbulent flow simulation (search for similar items in EconPapers)
Date: 2013
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Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:392:y:2013:i:9:p:1925-1930

DOI: 10.1016/j.physa.2012.12.034

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