Eur. Phys. J. C (2009) 60: 413-429
https://doi.org/10.1140/epjc/s10052-009-0927-0

Regular Article - Theoretical Physics

Comparing the first- and second-order theories of relativistic dissipative fluid dynamics using the 1+1 dimensional relativistic flux corrected transport algorithm

Frankfurt Institute for Advanced Studies, Johann Wolfgang Goethe Universität, Max-von-Laue-Str. 1, 60438, Frankfurt am Main, Germany

^* e-mail: molnar@fias.uni-frankfurt.de

Received: 20 July 2008
Revised: 22 December 2008
Published online: 24 February 2009

Abstract

Focusing on the numerical aspects and accuracy we study a class of bulk viscosity driven expansion scenarios using the relativistic Navier–Stokes and truncated Israel–Stewart form of the equations of relativistic dissipative fluids in 1+1 dimensions. The numerical calculations of conservation and transport equations are performed using the numerical framework of flux corrected transport. We show that the results of the Israel–Stewart causal fluid dynamics are numerically much more stable and smoother than the results of the standard relativistic Navier–Stokes equations.