An Adaptive Mesh Refinement Strategy with Conservative Space-Time Coupling for the Lattice-Boltzmann Method
51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition(2013)
摘要
A conservative lattice-Boltzmann method is presented for solving the time-dependent Navier-Stokes equations at low Mach numbers on lattices that are adaptively refined in space and time. A method for coupling the interfaces between grids at different resolutions was constructed following techniques established for finite-volume computational fluid dynamics methods. The effectiveness of the new coupling method, which relies on a spacetime interpolation and solving constrained least-squares problems to ensure conservation is compared against similar approaches relying only on spatial interpolation.
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关键词
Lattice Boltzmann Method,Immersed Boundary Method
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