An immersed smoothed point interpolation method with improved solution of fluid-structure interaction force

被引：0

作者：

Yang B.-R. ^{[1
]}

Zhang G.-Y. ^{[1
,2
]}

Wang S.-Q. ^{[1
]}

Yan B.-Q. ^{[1
]}

Wang P. ^{[1
]}

机构：

[1] State Key Laboratory of Structural Analysis for Industrial Equipment, School of Naval Architecture, Dalian University of Technology, Dalian

[2] Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration, Shanghai

来源：

Chuan Bo Li Xue/Journal of Ship Mechanics | 2023年 / 27卷 / 10期

关键词：

fluid-structure interaction (FSI); fluid-structure interaction (FSI) force; immersed method; smoothed point interpolation method (S-PIM); viscous force correction;

D O I：

10.3969/j.issn.1007-7294.2023.10.003

中图分类号：

学科分类号：

摘要：

Immersed smoothed point interpolation method (IS-PIM) is a fluid-structure interaction (FSI) simulation method under the framework of immersed method, using smoothed point interpolation method as a solid solver. The FSI force is solved by Lagrange grid of virtual fluid in the original IS-PIM. However, the velocity gradient of the fluid-solid boundary node is ignored in this method, which makes it unable to calculate the boundary viscous force and results in a large numerical error, especially when simulating the flow at low Reynolds numbers. In this paper, a new method for solving FSI force based on the Euler grid of real fluid was proposed. The simulation results show that the new FSI force solution method can effectively apply boundary viscous force and significantly improve the calculation accuracy without any correction. © 2023 China Ship Scientific Research Center. All rights reserved.

引用

页码：1455 / 1463

页数：8

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