On the shear viscosity of dilute suspension containing elliptical porous particles at low Reynolds number

doi:10.1016/j.powtec.2019.05.068

	On the shear viscosity of dilute suspension containing elliptical porous particles at low Reynolds number
	Liu, Jiajia 1,2; Li, Chenggong 1; Ye, Mao 1; Liu, Zhongmin 1
刊名	POWDER TECHNOLOGY
	2019-09-01
卷号	354 页码:108-114
关键词	Elliptical porous particle Relative viscosity Intrinsic viscosity Lattice Boltzmann model Darcy number
ISSN号	0032-5910
DOI	10.1016/j.powtec.2019.05.068
通讯作者	Ye, Mao(maoye@dicp.ac.cn)
英文摘要	In view of the significance of non-spherical and permeable particles in liquid-solid and gas-liquid-solid reactors in industrial processes, it is essential to understand and quantify the rheological properties of multiphase flows in these processes. In this study, we investigate the shear viscosity of dilute suspension containing elliptical porous particles at low Reynolds number Re of O(0) by use of a modified lattice Boltzmann model. The fluid flow around and inside an elliptical porous particle is described by the volume-averaged macroscopic governing equations. The relative viscosity is calculated for an elliptical porous particle rotating in a two-dimensional (2D) simple shear flow, based on the relation between the shear stress and the second order moments of non-equilibrium particle distribution function. The effects of porous structure of the elliptical particle on the viscosity and flow field are investigated with different axis ratios in detail. Our results demonstrate that the relative viscosities of dilute suspension containing elliptical porous particles increase linearly with solid volume fraction at various Darcy number for particles with varying axis ratios. Moreover, a simple empirical expression for intrinsic viscosity is proposed as a function of Darcy number. (C) 2019 Elsevier B.V. All rights reserved.
资助项目	National Natural Science Foundation of China[91834302]
WOS关键词	PARTICULATE SUSPENSIONS ; FLOW ; SIMULATION ; EQUATION ; MOTION
WOS研究方向	Engineering
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000490625500011
资助机构	National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/172592]
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
通讯作者	Ye, Mao
作者单位	1.Chinese Acad Sci, Dalian Inst Chem Phys, Natl Engn Lab MTO, Dalian Natl Lab Clean Energy, Dalian 116023, Liaoning, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Liu, Jiajia,Li, Chenggong,Ye, Mao,et al. On the shear viscosity of dilute suspension containing elliptical porous particles at low Reynolds number[J]. POWDER TECHNOLOGY,2019,354:108-114.
APA	Liu, Jiajia,Li, Chenggong,Ye, Mao,&Liu, Zhongmin.(2019).On the shear viscosity of dilute suspension containing elliptical porous particles at low Reynolds number.POWDER TECHNOLOGY,354,108-114.
MLA	Liu, Jiajia,et al."On the shear viscosity of dilute suspension containing elliptical porous particles at low Reynolds number".POWDER TECHNOLOGY 354(2019):108-114.