The right choice of moment for anisotropic fluid dynamics
Nuclear Theory
2018-03-14 v1
Abstract
We study anisotropic fluid dynamics derived from the Boltzmann equation based on a particular choice for the anisotropic distribution function within a boost-invariant expansion of the fluid in one spatial dimension. In order to close the conservation equations we need to choose an additional moment of the Boltzmann equation. We discuss the influence of this choice of closure on the time evolution of fluid-dynamical variables and search for the best agreement to the solution of the Boltzmann equation in the relaxation-time approximation.
Keywords
Cite
@article{arxiv.1705.01851,
title = {The right choice of moment for anisotropic fluid dynamics},
author = {H. Niemi and E. Molnár and D. H. Rischke},
journal= {arXiv preprint arXiv:1705.01851},
year = {2018}
}
Comments
4 pages, 4 figures, proceedings for Quark Matter 2017