One-sided GRP Solver and Numerical Boundary Conditions for compressible fluid flows
Jiequan Li,
Qinglong Zhang
Abstract:In the computation of compressible fluid flows, numerical boundary conditions are always necessary for all physical variables at computational boundaries while just partial physical variables are often prescribed as physical boundary conditions. Certain extrapolation technique or ghost cells are often employed traditionally for this issue but spurious wave reflections often arise to cause numerical instability. In this paper, we associate this issue with the one-sided generalized Riemann problem (GRP) solver m… Show more
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