A high-efficiency sharp-interface immersed boundary method based on multi-linear interpolation

doi:10.1063/5.0228369

IMECH-IR > 流固耦合系统力学重点实验室

	A high-efficiency sharp-interface immersed boundary method based on multi-linear interpolation
	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
通讯作者	Yin, Bo([email protected])
发表期刊	PHYSICS OF FLUIDS
	2024-09-01
卷号	36 期号:9 页码:22
ISSN	1070-6631
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.
DOI	10.1063/5.0228369
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:001321227600019
关键词[WOS]	NAVIER-STOKES EQUATIONS ; INCOMPRESSIBLE FLOWS ; SPECTRAL METHOD ; VISCOUS-FLOW ; SPHERE ; SIMULATIONS ; CYLINDER ; WAKE
WOS研究方向	Mechanics ; Physics
WOS类目	Mechanics ; Physics, Fluids & Plasmas
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]
项目资助者	Major Projects of the National Natural Science Foundation of China ; National Natural Science Foundation of China ; CAS Strategic Leading Science and Technology Project
论文分区	一类/力学重要期刊
力学所作者排名	1
RpAuthor	Yin, Bo
引用统计
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/96848
专题	流固耦合系统力学重点实验室
作者单位	1.Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China; 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, 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.Rp_Au:Yin, Bo
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.