Research on optimal refinement for rezoning method in numerical simulation of welding process

被引：0
作者：
Li Y. [1 ]
Zhao Y. [2 ]
Huang D. [1 ]
Guo X. [1 ]
机构：
[1] Wuhan Second Ship Design and Research Institute, Wuhan
[2] School of Naval Architecture and Ocean Engineering, Huazhong University of Science and Technology, Wuhan
来源：
Huazhong Keji Daxue Xuebao (Ziran Kexue Ban)/Journal of Huazhong University of Science and Technology (Natural Science Edition) | 2020年 / 48卷 / 05期
关键词：
Accuracy; Computational efficiency; Numerical simulation; Optimal refinement; Rezoning method; Welding;
D O I：
10.13245/j.hust.200518
中图分类号：
学科分类号：
摘要：
To improve computational efficiency and accuracy for rezoning method in numerical simulation of welding process, research was carried out focusing on two important parameters, namely the rezoning region size and the fine mesh size. Taking typical plate welding as example, three variables of the fine mesh size, the rezoning region width, and the rezoning region length that could affect computational efficiency and accuracy were discussed separately through numerical simulation, and three empiric formulas for the optimal value were summarized. Research results show that optimal refinement can improve computational efficiency by 61% compared with traditional numerical simulation without rezoning when maintaining certain accuracy, which could provide a reference for other analysis involving a small nonlinear region traveling within a large structure. © 2020, Editorial Board of Journal of Huazhong University of Science and Technology. All right reserved.
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页码：99 / 104
页数：5
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