Stochastic rotation dynamics: a Galilean-invariant mesoscopic model for fluid flow.
A recently introduced stochastic model for fluid dynamics with continuous velocities and efficient multiparticle collisions is investigated, and it is shown how full Galilean-invariance can be achieved for arbitrary Mach numbers. Analytic expressions for the viscosity and diffusion constant are also derived and compared with simulation results. Long-time tails in the velocity and stress autocorrelation functions are measured.
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Supercomputing Institute, University of Minnesota, 1200 Washington Avenue South, Minneapolis, Minnesota 55415, USA.
Kroll
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