English

Multispecies Bhatnagar-Gross-Krook models and the Onsager reciprocal relations

Statistical Mechanics 2026-05-29 v3

Abstract

It is shown that most of the existing versions of the Bhatnagar-Gross-Krook model - those whose coefficient are independent of the molecular velocity - do not satisfy the Onsager relations. This circumstance poses a problem when calibrating these models, making their transport properties match those of a specific fluid.

Keywords

Cite

@article{arxiv.2406.10909,
  title  = {Multispecies Bhatnagar-Gross-Krook models and the Onsager reciprocal relations},
  author = {E. S. Benilov},
  journal= {arXiv preprint arXiv:2406.10909},
  year   = {2026}
}