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Underwater Explosion Cavitation Characteristics of Inclined Wall Near Free Surface

Wenbin Wu^1,*

1 College of Engineering, Ocean University of China, Qingdao, 266100, China

* Corresponding Author: Wenbin Wu. Email:

The International Conference on Computational & Experimental Engineering and Sciences 2023, 26(2), 1-1. https://doi.org/10.32604/icces.2023.08928

Abstract

The shock wave and cavitation reloading caused by underwater explosion (UNDEX) could threaten the survivability of naval ships seriously. In this talk, we introduce the local discontinuous Galerkin (LDG) method [1] to solve the wave equation to track the propagation and reflection of the UNDEX shock wave. And the pressure cutoff model is adopted to simulate the cavitation effect caused by the reflection of the shock wave. The present LDG model can accurately calculate the UNDEX shock wave and cavitation loading. The present model is validated by comparing with the total formulation calculated by the ABAQUS software. Using this model, the cavitation characteristics of inclined wall near free surface are investigated. And the action of the complex fluid field boundary on the explosion loading and cavitation characteristics are analyzed.

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Keywords

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