Animating turbulent water by vortex shedding in PIC/FLIP

ISCAS OpenIR

	Animating turbulent water by vortex shedding in PIC/FLIP
	Zhu, Jian (1); Liu, YouQuan (3); Chang, YuanZhang (1); Wu, EnHua (1); Zhu, J.(rockeyzhu1122@gmail.com)
	2013
发表期刊	Science China Information Sciences
ISSN	1674733X
卷号	56 期号:3 页码:1-11
摘要	In this paper, we present a hybrid method, which integrates PIC/FLIP and vortex particle methods into a unified framework, to efficiently simulate vortex shedding that happens when fluids flow around internal obstacles. To improve efficiency and reduce the numerical dissipations, we first solve the governing equations on a coarse grid using PIC/FLIP, and then interpolate the intermediate results to a finer grid to obtain the base flow. When the regular particles in PIC/FLIP enter the boundary layer, if the specified conditions are satisfied to cause vortex shedding, they are selected as vortex particles by assigning additional vorticity related attributes. The vortex particle dynamics are controlled by the vorticity form of NS equations, and several efficient methods are proposed to solve them on the finer grid. Finally, the obtained turbulence flow is added to the base flow. As a result, we are able to simulate turbulent water with rich wake details around the internal obstacles. © 2013 Science China Press and Springer-Verlag Berlin Heidelberg.; In this paper, we present a hybrid method, which integrates PIC/FLIP and vortex particle methods into a unified framework, to efficiently simulate vortex shedding that happens when fluids flow around internal obstacles. To improve efficiency and reduce the numerical dissipations, we first solve the governing equations on a coarse grid using PIC/FLIP, and then interpolate the intermediate results to a finer grid to obtain the base flow. When the regular particles in PIC/FLIP enter the boundary layer, if the specified conditions are satisfied to cause vortex shedding, they are selected as vortex particles by assigning additional vorticity related attributes. The vortex particle dynamics are controlled by the vorticity form of NS equations, and several efficient methods are proposed to solve them on the finer grid. Finally, the obtained turbulence flow is added to the base flow. As a result, we are able to simulate turbulent water with rich wake details around the internal obstacles. © 2013 Science China Press and Springer-Verlag Berlin Heidelberg.
收录类别	SCI ; EI
关键词	Physically Based Fluid Simulation Turbulence Vortex Shedding Vortex Particle Pig/flip
部门归属	(1) Computer Graphics and Multimedia Laboratory(NG04), Faculty of Science and Technology, University of Macau, Macao SAR, China; (2) State Key Laboratory of Computer Science, Institute of Software, Chinese Academy of Sciences, Beijing, 100190, China; (3) School of Information Engineering, Chang'an University, Xi'an, 710064, China
语种	英语
WOS记录号	WOS:000318197000002
引用统计
内容类型	期刊论文
URI标识	http://ir.iscas.ac.cn/handle/311060/16942
专题	中国科学院软件研究所
通讯作者	Zhu, J.(rockeyzhu1122@gmail.com)
推荐引用方式 GB/T 7714	Zhu, Jian ,Liu, YouQuan ,Chang, YuanZhang ,et al. Animating turbulent water by vortex shedding in PIC/FLIP[J]. Science China Information Sciences,2013,56(3):1-11.
APA	Zhu, Jian ,Liu, YouQuan ,Chang, YuanZhang ,Wu, EnHua ,&Zhu, J..(2013).Animating turbulent water by vortex shedding in PIC/FLIP.Science China Information Sciences,56(3),1-11.
MLA	Zhu, Jian ,et al."Animating turbulent water by vortex shedding in PIC/FLIP".Science China Information Sciences 56.3(2013):1-11.