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arXiv · 1309.4766

On the moment system and a flexible Prandtl number

Raúl Machado
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Abstract

The Maxwell-Boltzmann moment system can be seen as a particular case of a mathematically more general moment system proposed by Machado in Ref [1]. This last moment system, whose integral generating form and a suggested continuous distribution are presented here, is used in this letter to theoretically show (one of) its usefulness: A flexible Prandtl number can be obtained in both the Boltzmann equation and in the lattice Boltzmann equation with a conventional single relaxation time Bhatnagar-Gross-Krook collision model.

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Raúl Machado. 2013-10-05. On the moment system and a flexible Prandtl number. https://doi.org/10.1142/s0217984914500481

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