An investigation of a gas-liquid swirling flow with shear-thinning power-law liquids

doi:10.1063/5.0099895

CORC > 力学研究所 > 中国科学院力学研究所 > 流固耦合系统力学重点实验室(2012-)

	An investigation of a gas-liquid swirling flow with shear-thinning power-law liquids
	Liu S(刘硕)2; Zhang J(张健)2; Xu JY(许晶禹)1,2
刊名	PHYSICS OF FLUIDS
	2022-07-01
卷号	34 期号:7 页码:17
ISSN号	1070-6631
DOI	10.1063/5.0099895
通讯作者	Zhang, Jian(zhangjian@imech.ac.cn) ; Xu, Jing-yu(xujingyu@imech.ac.cn)
英文摘要	A gas-liquid swirling flow with shear-thinning liquid rheology exhibits complex behavior. In order to investigate its flow characteristics, experiments and computational fluid dynamics (CFD) simulations are conducted based on dimensional analysis. A Malvern particle size analyzer and electrical resistance tomography are applied to obtain the bubble size distribution and section void fraction. A Coriolis mass flowmeter is applied to obtain the mixture flow rate and mixture density for an entrance gas volume fraction smaller than 7%. The CFD coupled mixture multiphase model and large eddy simulation model are applied, considering the liquid shear-thinning power-law rheology. The results show that the swirling flow can be divided into developing and decaying sections according to the swirl intensity evolution in the axial direction. A gas-liquid swirl flow with shear-thinning liquid prohibits a core-annulus flow structure. A smaller index n contributes to maintaining the development of the swirl flow field and its core-annulus flow structure so that the swirl flow can form over a shorter distance with a stronger intensity. For a more uniform distribution of the apparent viscosity, the gas column in the pipe center is thinner. On the other hand, a larger consistency k enlarges the stress tensor. The amplitude of the velocity and the pressure of the core-annulus flow structure are reduced. A weaker swirl intensity appears with a wider gas column appearing as a consequence. Furthermore, the swirl number decays with an exponential behavior with parameters sensitive to the consistency k and index n of the decaying section of the swirling flow field. These are beneficial to gas-liquid separator design and optimization when encountering the shear-thinning power-law liquid phase in the petroleum industry. Published under an exclusive license by AIP Publishing.
分类号	一类/力学重要期刊
资助项目	National Natural Science Foundation of China[12102436] ; Strategic Priority Research Program of the Chinese Academy of Science[XDB22030101]
WOS关键词	LARGE-EDDY SIMULATION ; AXIAL-FLOW ; SEPARATOR
WOS研究方向	Mechanics ; Physics
语种	英语
WOS记录号	WOS:000829722500007
资助机构	National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Science
其他责任者	Zhang, Jian ; Xu, Jing-yu
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/89788]
专题	力学研究所_流固耦合系统力学重点实验室(2012-)
作者单位	1.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China;
推荐引用方式 GB/T 7714	Liu S,Zhang J,Xu JY. An investigation of a gas-liquid swirling flow with shear-thinning power-law liquids[J]. PHYSICS OF FLUIDS,2022,34(7):17.
APA	刘硕,张健,&许晶禹.(2022).An investigation of a gas-liquid swirling flow with shear-thinning power-law liquids.PHYSICS OF FLUIDS,34(7),17.
MLA	刘硕,et al."An investigation of a gas-liquid swirling flow with shear-thinning power-law liquids".PHYSICS OF FLUIDS 34.7(2022):17.