Lattice Boltzmann simulations of three-dimensional incompressible flows in a four-sided lid driven cavity

doi:10.1088/1873-7005/aa5658

	Lattice Boltzmann simulations of three-dimensional incompressible flows in a four-sided lid driven cavity
	Li,Cheng Gong 2; Maa,Jerome P-Y 1
刊名	Fluid Dynamics Research
	2017-02-06
卷号	49 期号:2
关键词	3D four-sided lid driven cavity flow transverse aspect ratio multiple relaxation time lattice Boltzmann equation (MRT-LBE) laminar flow
ISSN号	0169-5983
DOI	10.1088/1873-7005/aa5658
英文摘要	Abstract Numerical study on three-dimensional (3D), incompressible, four-sided lid (FSL) driven cavity flows has been conducted to show the effects of the transverse aspect ratio, K, on the flow field by using a multiple relaxation time lattice Boltzmann equation. The top wall is driven from left to right, the left wall is moved downward, whereas the right wall is driven upward, and the bottom wall is moved from right to left, all the four moving walls have the same speed and the others boundaries are fixed. Numerical computations are performed for several Reynolds numbers for laminar flows, up to 1000, with various transverse aspect ratios. The flow can reach a steady state and the flow pattern is symmetric with respect to the two cavity diagonals (i.e., the center of the cavity). At Reynolds number?=?300, the flow structures of the 3D FSL cavity flow at steady state with various transverse aspect ratio, i.e., 3, 2, 1, 0.75, 0.5 and 0.25 only show the unstable symmetrical flow pattern. The stable asymmetrical flow pattern could be reproduced only by increasing the Reynolds number that is above a critical value which is dependent on the aspect ratio. It is found that an aspect ratio of more than 5 is needed to reproduce flow patterns, both symmetric and asymmetric flows, simulated by using 2D numerical models.
语种	英语
出版者	IOP Publishing
WOS记录号	IOP:0169-5983-49-2-AA5658
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/167078]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
作者单位	1.Virginia Institute of Marine Science, College of William & Mary, Gloucester Point, VA 23062, United States 2.National Engineering Laboratory for MTO, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, People’s Republic of China
推荐引用方式 GB/T 7714	Li,Cheng Gong,Maa,Jerome P-Y. Lattice Boltzmann simulations of three-dimensional incompressible flows in a four-sided lid driven cavity[J]. Fluid Dynamics Research,2017,49(2).
APA	Li,Cheng Gong,&Maa,Jerome P-Y.(2017).Lattice Boltzmann simulations of three-dimensional incompressible flows in a four-sided lid driven cavity.Fluid Dynamics Research,49(2).
MLA	Li,Cheng Gong,et al."Lattice Boltzmann simulations of three-dimensional incompressible flows in a four-sided lid driven cavity".Fluid Dynamics Research 49.2(2017).