This paper constructs the model of shock wave of gas-solid flow considering the two-phase sound velocity. After the calculations, the results of shock wave are compared with the results by using gas sound velocity. When the gas fraction is high, the results by the two models agree well with each other. When the gas fraction is lower, the two-phase sound velocity model gives more accurate sound velocity. So the shock wave results by the two-phase sound velocity model are more reasonable than by the single-phase sound velocity. The model of this paper is more applicable for two-phase shock wave analysis.

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