An investigation of a gas-liquid swirling flow with shear-thinning power-law liquids
文献类型：期刊论文
| 作者 | Liu, Shuo2; Zhang, Jian2 ; Xu, Jing-yu1,2; Xu JY(许晶禹); Zhang J(张健)
|
| 刊名 | PHYSICS OF FLUIDS
 |
| 出版日期 | 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. |
| WOS关键词 | LARGE-EDDY SIMULATION ; AXIAL-FLOW ; SEPARATOR |
| 资助项目 | National Natural Science Foundation of China[12102436] ; Strategic Priority Research Program of the Chinese Academy of Science[XDB22030101] |
| 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 |
| 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-) |
| 通讯作者 | Zhang, Jian; Xu, Jing-yu |
| 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, Shuo,Zhang, Jian,Xu, Jing-yu,et al. An investigation of a gas-liquid swirling flow with shear-thinning power-law liquids[J]. PHYSICS OF FLUIDS,2022,34(7):17. |
| APA | Liu, Shuo,Zhang, Jian,Xu, Jing-yu,许晶禹,&张健.(2022).An investigation of a gas-liquid swirling flow with shear-thinning power-law liquids.PHYSICS OF FLUIDS,34(7),17. |
| MLA | Liu, Shuo,et al."An investigation of a gas-liquid swirling flow with shear-thinning power-law liquids".PHYSICS OF FLUIDS 34.7(2022):17. |
入库方式： OAI收割
来源：力学研究所
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