A high-efficiency sharp-interface immersed boundary method based on multi-linear interpolation
文献类型：期刊论文
| 作者 | Hao ZZ(郝占宙)1,2 ; Yin B(银波)1,2; Xu MF(徐梦凡)1,2; Yang GW(杨国伟)1,2
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| 刊名 | PHYSICS OF FLUIDS
 |
| 出版日期 | 2024-09-01 |
| 卷号 | 36期号:9页码:22 |
| ISSN号 | 1070-6631 |
| DOI | 10.1063/5.0228369 |
| 通讯作者 | Yin, Bo(yinbo@imech.ac.cn) |
| 英文摘要 | The sharp-interface immersed boundary method (IBM) reconstructs the flow locally to achieve the precise identification of solid boundaries and their consequential influences on the fluid dynamics. However, the computational accuracy and efficiency are notably impacted by the diverse interaction between the fluid's Euler grid and the solid's Lagrange mesh. Taking the two-dimensional (2D) case as an example, we analyze the characteristics of various grid cutting classes, with a particular focus on how they reduce the solution speed and computational precision. To address these challenges, we propose a multi-linear interpolation method that enriches flow field information by expanding the interpolation template. Computational results of 2D flow past a stationary cylinder and airfoil, and the takeoff of airfoil takeoff demonstrate that the multi-linear interpolation method increases computational efficiency by up to 20%, while maintaining accuracy. Furthermore, we extend this method to three-dimensional (3D) calculations, enhancing efficiency by about 5% and improving accuracy. Finally, by simulating the full-body motion of a penguin swimming, we showcase the robustness of the method in simulating complex geometric moving boundary problems. |
| 分类号 | 一类/力学重要期刊 |
| WOS关键词 | NAVIER-STOKES EQUATIONS ; INCOMPRESSIBLE FLOWS ; SPECTRAL METHOD ; VISCOUS-FLOW ; SPHERE ; SIMULATIONS ; CYLINDER ; WAKE |
| 资助项目 | Major Projects of the National Natural Science Foundation of China ; National Natural Science Foundation of China[12272383] ; CAS Strategic Leading Science and Technology Project[XDA22040203] ; [12293000] ; [12293004] |
| WOS研究方向 | Mechanics ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:001321227600019 |
| 资助机构 | Major Projects of the National Natural Science Foundation of China ; National Natural Science Foundation of China ; CAS Strategic Leading Science and Technology Project |
| 其他责任者 | Yin, Bo |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/96847]  |
| 专题 | 力学研究所_流固耦合系统力学重点实验室(2012-) |
| 作者单位 | 1.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Hao ZZ,Yin B,Xu MF,et al. A high-efficiency sharp-interface immersed boundary method based on multi-linear interpolation[J]. PHYSICS OF FLUIDS,2024,36(9):22. |
| APA | 郝占宙,银波,徐梦凡,&杨国伟.(2024).A high-efficiency sharp-interface immersed boundary method based on multi-linear interpolation.PHYSICS OF FLUIDS,36(9),22. |
| MLA | 郝占宙,et al."A high-efficiency sharp-interface immersed boundary method based on multi-linear interpolation".PHYSICS OF FLUIDS 36.9(2024):22. |
入库方式： OAI收割
来源：力学研究所
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