Numerical simulation of the water entry of an elastomer by using the WCSPH-SPIM coupled method

被引：0
|
作者：
Shi S. [1 ]
Zhang G. [1 ,2 ,3 ]
Wang S. [1 ]
Hu T. [1 ]
机构：
[1] Liaoning Engineering Laboratory for Deep-Sea Floating Structures, School of Naval Architecture, Dalian University of Technology, Dalian
[2] State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology, Dalian
[3] Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration, Shanghai
来源：
Zhendong yu Chongji/Journal of Vibration and Shock | 2020年 / 39卷 / 18期
关键词：
Fluid-structure interaction(FSI); Smoothed point interpolation method(SPIM); Water-entry; Weakly compressible smoothed particle hydrodynamics(WCSPH);
D O I：
10.13465/j.cnki.jvs.2020.18.013
中图分类号：
学科分类号：
摘要：
Considering the strong nonlinear characteristics of the water entry problem, the grid-based method will inevitably encounter the difficulties in grid distortion and inaccurate liquid surface capture. However, the Lagrangian meshless method has shown strong advantage when dealing with this type of problems. Making use of this merit, a fluid-structure interaction (FSI) model was built to simulate the water entry by using two meshless methods as the fluid and solid solver respectively. After verifying the effectiveness of the weakly compressible smoothed particle hydrodynamics (WCSPH) method to solve the water entry of a rigid body, the water entry problem of an elastomer with low and high speeds was studied using the newly proposed WCSPH integrated with the smoothed point interpolation method (WCSPH-SPIM). The calculation results show that the deformations at key points and the change of pressure with time are in good agreement with those of experiment or semi analytical solutions, which verifies the efficiency of the proposed method on the simulation of water entry. © 2020, Editorial Office of Journal of Vibration and Shock. All right reserved.
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页码：103 / 108
页数：5
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