SPH numerical simulation of peak pressure in near-field underwater explosion with moving boundary method using virtual particles

被引：1
|
作者：
Gong, Xiangfei [1 ,2 ]
Wang, Yanjin [1 ]
Zhang, Shudao [1 ]
Yang, Jiming [2 ]
机构：
[1] Inst Appl Phys & Computat Math, Beijing 100094, Peoples R China
[2] Univ Sci & Technol China, Hefei 230026, Peoples R China
来源：
AIP ADVANCES | 2023年 / 13卷 / 09期
基金：
中国国家自然科学基金;
关键词：
HYDRODYNAMICS; REFINEMENT; ACCURACY;
D O I：
10.1063/5.0141206
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
A new moving boundary method using virtual particles in smoothed particle hydrodynamics is designed and applied to numerical simulation of underwater explosion. The wave structure in underwater explosion was semi-analyzed, which provides references for the understanding of numerical results in various dimensions. The results show that the boundary point between the near-field and middle-field, with the specific distance R/a = 6, is a demarcation point in the wave structure. Piecewise power fitting computational results in the near-field underwater explosion are in good agreement with the numerical results.
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收藏
页数：9
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