Mohsen Lahooti and Ahmadreza Pishevar A CWENO ghost fluid method for compressible multimaterial flow International Journal for Numerical Methods in Fluids 73
A ghost fluid method is developed for multimaterial compressible flow with arbitrary equations of state. The structure of wave pattern at the interface is approximated by a two-shock system, which their speeds are estimated by a simple wave speed model and intermediate states are calculated analytically and independent from the equation of state. These intermediate states are then used to populate ghost points. Numerical results showed that the proposed method is robust and capable of handling strong shock–interface interaction.
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