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General Propagation Lattice Boltzmann Model for the Boussinesq Equation
1School of Mathematics and Information Science, North Minzu University, Yinchuan 750021, China.
Abstract:
A general propagation lattice Boltzmann model is used to solve Boussinesq equations. Different local equilibrium distribution functions are selected, and the macroscopic equation is recovered with second order accuracy by means of the Chapman-Enskog multi-scale analysis and the Taylor expansion technique. To verify the effectiveness of the present model, some Boussinesq equations with initial boundary value problems are simulated. It is shown that our model can remain stable and accurate, which is an effective algorithm worthy of promotion and application.
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