Sharp interface immersed boundary method for simulating three-dimensional swimming fish

doi:10.1080/19942060.2020.1724197

CORC > 力学研究所 > 中国科学院力学研究所 > 非线性力学国家重点实验室

	Sharp interface immersed boundary method for simulating three-dimensional swimming fish
	Cui Z 2; Yang ZX(杨子轩)1; Jiang HZ 3
刊名	ENGINEERING APPLICATIONS OF COMPUTATIONAL FLUID MECHANICS
	2020
卷号	14 期号:1 页码:534-544
关键词	Immersed boundary method self-propelled fish level-set function vortex street Strouhal number
ISSN号	1994-2060
DOI	10.1080/19942060.2020.1724197
通讯作者	Cui, Zuo(cuizuo@yeah.net)
英文摘要	A second order finite-difference numerical method is used to solve the Navier-Stokes equations of incompressible flow, in which the solid body with complex geometry is immersed into the fluid domain with orthogonal Cartesian meshes. To account for influences of the solid body, interactive forces are applied as boundary conditions at Cartesian grid nodes located in the exterior but in the immediate vicinity of the solid body. Fluid flow velocities in these nodes are reconstructed to track and control the deformation of the solid body, in which the local direction normal to the body surface is employed using the level-set function. The capabilities of this method are demonstrated by the application to fish swimming, and the computed behaviors of swimming fish agree well with experimental ones. The results elucidate that the ability of swimming fish to produce more thrust and high efficiency is closely related to the Reynolds number. The single reverse Karman street tends to appear when both the Strouhal number and tail-beating frequency are small, otherwise the double-row reverse Karman street appears. The algorithm can capture the geometry of a deformable solid body accurately, and performs well in simulating interactions between fluid flow and the deforming and moving body.
分类号	二类
资助项目	Scientific Start-up Project of GuiZhou Institute of Technology[XJGC201909 56] ; fund of the Research Cultivation and Technology Exploration Program of GuiZhou Institute of Technology[[2017]5789-20]
WOS关键词	COMPUTATIONAL FLUID-DYNAMICS ; LARGE-EDDY SIMULATION ; NUMERICAL-SIMULATION ; HEART-VALVES ; COMPLEX ; FLOW ; HYDRODYNAMICS ; WAKE ; 3D
WOS研究方向	Engineering ; Mechanics
语种	英语
WOS记录号	WOS:000516590400001
资助机构	Scientific Start-up Project of GuiZhou Institute of Technology ; fund of the Research Cultivation and Technology Exploration Program of GuiZhou Institute of Technology
其他责任者	Cui, Zuo
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/81577]
专题	力学研究所_非线性力学国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing, Peoples R China; 2.Guizhou Inst Technol, Sch Aerosp Engn, Guiyang, Peoples R China; 3.Harbin Inst Technol, Sch Mechatron Engn, Harbin, Heilongjiang, Peoples R China
推荐引用方式 GB/T 7714	Cui Z,Yang ZX,Jiang HZ. Sharp interface immersed boundary method for simulating three-dimensional swimming fish[J]. ENGINEERING APPLICATIONS OF COMPUTATIONAL FLUID MECHANICS,2020,14(1):534-544.
APA	Cui Z,杨子轩,&Jiang HZ.(2020).Sharp interface immersed boundary method for simulating three-dimensional swimming fish.ENGINEERING APPLICATIONS OF COMPUTATIONAL FLUID MECHANICS,14(1),534-544.
MLA	Cui Z,et al."Sharp interface immersed boundary method for simulating three-dimensional swimming fish".ENGINEERING APPLICATIONS OF COMPUTATIONAL FLUID MECHANICS 14.1(2020):534-544.