Numerical simulations of compressible Rayleigh-Taylor turbulence in stratified fluids

Details Numerical simulations of compressible Rayleigh-Taylor turbulence in stratified fluids Numerical simulations of compressible Rayleigh-Taylor turbulence in stratified fluids

2010-09-29

arxiv.org/abs/1009.5819v1

Physics

Fluid Dynamics

15 pages, 11 figures. Proceedings of II Conference on Turbulent Mixing and Beyond (TMB-2009)

Scientific paper

We present results from numerical simulations of Rayleigh-Taylor turbulence, performed using a recently proposed lattice Boltzmann method able to describe consistently a thermal compressible flow subject to an external forcing. The method allowed us to study the system both in the nearly-Boussinesq and strongly compressible regimes. Moreover, we show that when the stratification is important, the presence of the adiabatic gradient causes the arrest of the mixing process.

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