English

On the moment system and a flexible Prandtl number

Fluid Dynamics 2015-06-17 v2

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.

Keywords

Cite

@article{arxiv.1309.4766,
  title  = {On the moment system and a flexible Prandtl number},
  author = {Raúl Machado},
  journal= {arXiv preprint arXiv:1309.4766},
  year   = {2015}
}

Comments

Re-organized (etc) version in order to be similar to the submitted one