Nonorthogonal central-moments-based lattice Boltzmann scheme in three dimensions

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Abstract

We present an alternative three-dimensional lattice Boltzmann collision operator consisting of a nonorthogonal basis of central moments. Our formulation is characterized by an intelligible derivation with a relatively simple and quite general implementation. It is successfully validated against several established, well-consolidated, well-defined benchmark problems, showing excellent properties in terms of accuracy and convergence. If compared to the adoption of the classical Bhatnagar-Gross-Krook operator, our model possesses superior stability.

Original languageEnglish
Article number013310
JournalPhysical Review E
Volume95
Issue number1
DOIs
Publication statusPublished - 27 Jan 2017

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