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A Multicomponent Lattice Boltzmann Model for Multiphase Convection, Diffusion, and Reaction in Two Dimensions

J. M. Parker ; Department of Chemical Engineering, Oregon State University, Corvallis, Oregon 97330, USA
G. N. Jovanovic ; Department of Chemical Engineering, Oregon State University, Corvallis, Oregon 97330, USA

Sažetak

The lattice Boltzmann method is a promising technique for modeling of multiphase fluids. In this paper, a multicomponent multiple-relaxation-time (MRT) model is developed for mass and momentum transport. In this model, diffusion of mass is defined in a fundamentally correct manner – gradients of chemical potential are the driving force for this movement. As a result, distinct fluid phases form or disappear as a result of diffusion toward a local chemical equilibrium. Numerical analysis of the model proves that the desired mass and momentum transport is being achieved and the multiphase performance
of the model is tested numerically.

Ključne riječi

Lattice Boltzmann; multicomponent; diffusion; reaction

Hrčak ID:

45378

URI

https://hrcak.srce.hr/45378

Datum izdavanja:

23.12.2009.

Posjeta: 1.074 *