Comment on "Numerics of the lattice Boltzmann method: effects of collision models on the lattice Boltzmann simulations".
Critical comments on the entropic lattice Boltzmann equation (ELBE), by Li-Shi Luo, Wei Liao, Xingwang Chen, Yan Peng, and Wei Zhang in Ref. , are based on simulations, which make use of a model that, despite being referred to as the ELBE by the authors, is in fact equivalent to the standard lattice Bhatnagar-Gross-Krook equation for low Mach number simulations. In this Comment, a concise review of the ELBE is provided and illustrated by means of a three-dimensional turbulent flow simulation, which highlights the subgrid features of the ELBE.
Energy Technology Research Group, School of Engineering Sciences, University of Southampton, Southampton GB-SO17 1BJ, United Kingdom. karlin@lav.mavt.ethz.ch
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