Compressible Convective Instability by Molecular Dynamics : Dedicated to Berni J. Alder(The 50th Anniversary of the Alder Transition -Recent Progress on Computational Statistical Physics-)

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We report on simulations of two-dimensional fluids subjected to a temperature gradient, with an orthogonal gravity field suddenly switched on. Short-time behavior is dominated by rapid oscillations for the temperature and density field variables: the latter are interpreted as compressibility effects accurately described by linearized hydrodynamic equations until convective transport establishes itself.
2009-04-24