单流体空化模型在水下爆炸诱导空化问题中的对比分析

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振动与冲击 ›› 2023, Vol. 42 ›› Issue (23) : 276-283.

论文

金泽宇 1，殷彩玉 2，孔祥韶 1

作者信息 +

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

JIN Zeyu1,YIN Caiyu2,KONG Xiangshao1

Author information +

文章历史 +

摘要

在龙格库塔间断伽辽金数值框架下建立了空化截断、修正的Schmidt和等熵空化流三种单流体空化模型，应用于水下冲击波与浮在自由面平板相互作用、水下冲击波与弹性支撑平板相互作用及水下冲击波与水背衬平板相互作用三个实例中。对比分析三种不同空化模型计算获得的流体和结构响应，得到单流体空化模型应用在水下爆炸问题时，饱和蒸汽压、输入载荷强度等因素对不同空化模型计算结果的影响。该结果对应用单流体模型求解水下爆炸问题提供依据。

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.

导出引用

金泽宇 1，殷彩玉 2，孔祥韶 1. 单流体空化模型在水下爆炸诱导空化问题中的对比分析[J]. 振动与冲击, 2023, 42(23): 276-283

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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