A nested grid refinement technique for magnetohydrodynamical flows

作者: Udo Ziegler , Harold W Yorke

DOI: 10.1016/S0010-4655(96)00163-4

关键词: Domain (mathematical analysis)Classification of discontinuitiesGridConstraint (computer-aided design)AdvectionGrid codeDivergence (statistics)PhysicsMagnetic fieldApplied mathematicsClassical mechanics

摘要: Abstract A grid refinement technique for high resolution magnetohydrodynamical flows is described. It based on the use of multiple nested grids having successively higher resolution. The numerical algorithm formulated in such a way that advection part hydrodynamical equations are solved conservative form whoel integration domain. In particular, divergence free constraint magnetic field, ▿ · B = 0 , fulfilled during simulation. Several tests presented demonstrating applicability code to many astrophysical problems including phenomena which steep gradients as shocks or contact discontinuities appear.

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