| An investigation of a gas-liquid swirling flow with shear-thinning power-law liquids |
| Liu S(刘硕)1; Zhang J(张健)1 ; Xu JY(许晶禹)1,2
|
| Corresponding Author | Zhang, Jian(zhangjian@imech.ac.cn)
; Xu, Jing-yu(xujingyu@imech.ac.cn)
|
| Source Publication | PHYSICS OF FLUIDS
(IF:2.627[JCR-2018],2.84[5-Year]) |
| 2022-07-01
|
| Volume | 34Issue:7Pages:17 |
| ISSN | 1070-6631
|
| Abstract | 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. |
| DOI | 10.1063/5.0099895
|
| Indexed By | SCI
; EI
|
| Language | 英语
|
| WOS ID | WOS:000829722500007
|
| WOS Keyword | LARGE-EDDY SIMULATION
; AXIAL-FLOW
; SEPARATOR
|
| WOS Research Area | Mechanics
; Physics
|
| WOS Subject | Mechanics
; Physics, Fluids & Plasmas
|
| Funding Project | National Natural Science Foundation of China[12102436]
; Strategic Priority Research Program of the Chinese Academy of Science[XDB22030101]
|
| Funding Organization | National Natural Science Foundation of China
; Strategic Priority Research Program of the Chinese Academy of Science
|
| Classification | 一类/力学重要期刊
|
| Ranking | 1
|
| Contributor | Zhang, Jian
; Xu, Jing-yu
|
| Citation statistics |
|
| Document Type | 期刊论文
|
| Identifier | http://dspace.imech.ac.cn/handle/311007/89789
|
| Collection | 流固耦合系统力学重点实验室
|
| Affiliation | 1.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China;
2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China
|
Recommended Citation
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.Rp_Au:Zhang, Jian, Xu, Jing-yu
|
| 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.
|
Edit Comment