Causal relativistic hydrodynamics for viscous fluids
Abstract
Description
We report on recent results from VISH2+1, a code that solves the relativistic Israel-Stewart equations for causal viscous hydrodynamics for heavy-ion collisions with longitudinal boost invariance. We find that even ``minimal'' shear viscosity eta/s=hbar/(4pi) leads to a large reduction of elliptic flow compared to ideal fluid dynamics. We explore systematically the sensitivity of this reduction to the equation of state, system size, initial conditions, and the microscopic relaxation time in different formulations of the Israel-Stewart equations.
4 pages, 1 figure. Contribution to the Proceedings for Quark Matter 2008, Jaipur, India, Feb. 3-10, 2008, to appear in a special issue of J. Phys. G. Version 2: CERN preprint number corrected and Fig. 1 (right panel) recalculated using full Israel-Stewart equations (see text)
4 pages, 1 figure. Contribution to the Proceedings for Quark Matter 2008, Jaipur, India, Feb. 3-10, 2008, to appear in a special issue of J. Phys. G. Version 2: CERN preprint number corrected and Fig. 1 (right panel) recalculated using full Israel-Stewart equations (see text)