Contrastive analysis of single fluid cavitation models in underwater explosion induced cavitation

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Journal of Vibration and Shock ›› 2023, Vol. 42 ›› Issue (23) : 276-283.

JIN Zeyu1,YIN Caiyu2,KONG Xiangshao1

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Abstract

Three one-fluid cavitation models - cut off model, modified Schmidt model and isentropic cavitation model, are established in a numerical framework of the Runge Kutta Discontinuous Galerkin method. Applications of three different cavitation models in the interaction problems between underwater blast and a plate floating at the free surface, between underwater blast and a plate with elastic foundation and between underwater blast and a water backed plate are conducted. The influences of the saturated vapor pressures and input load strengths on the performances of the cavitation models in the fluid and structural response are discussed. The results provide a basis for solving the underwater explosion problem by using the one fluid model.

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underwater explosion / cavitation / dynamic response / numerical analysis

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JIN Zeyu1,YIN Caiyu2,KONG Xiangshao1. Contrastive analysis of single fluid cavitation models in underwater explosion induced cavitation[J]. Journal of Vibration and Shock, 2023, 42(23): 276-283

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