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Title of article :
A cell-centered Lagrangian hydrodynamics scheme on general unstructured meshes in arbitrary dimension
Author/Authors :
Carré، نويسنده , , G. and Del Pino، نويسنده , , S. and Després، نويسنده , , B. and Labourasse، نويسنده , , E.، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2009
Pages :
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Abstract :
We describe a cell-centered Godunov scheme for Lagrangian gas dynamics on general unstructured meshes in arbitrary dimension. The construction of the scheme is based upon the definition of some geometric vectors which are defined on a moving mesh. The finite volume solver is node based and compatible with the mesh displacement. We also discuss boundary conditions. Numerical results on basic 3D tests problems show the efficiency of this approach. We also consider a quasi-incompressible test problem for which our nodal solver gives very good results if compared with other Godunov solvers. We briefly discuss the compatibility with ALE and/or AMR techniques at the end of this work. We detail the coefficients of the isoparametric element in the appendix.
Keywords :
Godunov scheme , Lagrangian scheme , Compressible gas dynamics
Journal title :
Journal of Computational Physics
Serial Year :
Link To Document :