A Study on the Limit of Riemann Solutions to Nonisentropic Euler Equations under van der Waals Gas
The Riemann problem of nonisentropic compressible Euler equations under van der Waals gas pressure is studied by characteristic line analysis method,and the formation process of the delta shock and the vacuum state is analyzed as the pressure and molecular exclusion volume vanish simultaneously.Further,numerical simulation results are given to verify the correctness of theoretical analysis.
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