English

A rigorous derivation of Haff's law for a periodic two-disk fluid

Dynamical Systems 2019-09-04 v1

Abstract

We derive Haff's cooling law for a periodic fluid consisting of two hard disks per unit cell by reducing it to a point particle moving inside a Sinai billiard with finite horizon with an inelastic collision rule. Indeed, our results also apply to general dispersing billiards with piece-wise smooth boundary with finite horizon and no cusps.

Keywords

Cite

@article{arxiv.1806.06320,
  title  = {A rigorous derivation of Haff's law for a periodic two-disk fluid},
  author = {Alexander Grigo},
  journal= {arXiv preprint arXiv:1806.06320},
  year   = {2019}
}