A comparative study of staggered and cell-centered Lagrangian formulation for multimaterial hydrodynamics
Conference
·
OSTI ID:1036730
- Los Alamos National Laboratory
We compare a staggered Lagrangian formulation with a cell-centered Lagrangian formulation for a two-material compressible flow. In both formulation, we assume a single velocity field and rely on pressure relaxation techniques to close the system of equations. We employ Tipton's mixture model for both formulation. However, for the cell-centered formulation, employing Tipton's model for the mixture cell results in loss of conservation of total energy. We propose a numerical algorithm to correct this energy discrepancy. We test both algorithms on the two-materials Sod shock tube test problem and compare the results with the analytical solution.
- Research Organization:
- Los Alamos National Laboratory (LANL)
- Sponsoring Organization:
- DOE
- DOE Contract Number:
- AC52-06NA25396
- OSTI ID:
- 1036730
- Report Number(s):
- LA-UR-10-06932; LA-UR-10-6932
- Country of Publication:
- United States
- Language:
- English
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