Spurious diffusion in particle simulations of the Kolmogorov flow
M. Malek Mansour, C. Van den Broeck, I. Bena, F. Baras
Abstract
Particle simulations of the Kolmogorov flow are analyzed by the Landau-Lifshitz fluctuating hydrodynamics. It is shown that a spurious diffusion of the center of mass corrupts the statistical properties of the flow. The analytical expression for the corresponding diffusion coefficient is derived.
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