Characteristics of gas-liquid Taylor flow with different liquid viscosities in a rectangular microchannel
文献类型：期刊论文
| 作者 | Yao, Chaoqun2; Zheng, Jia3; Zhao, Yuchao1; Zhang, Qi2; Chen, Guangwen2 |
| 刊名 | CHEMICAL ENGINEERING JOURNAL
 |
| 出版日期 | 2019-10-01 |
| 卷号 | 373页码:437-445 |
| ISSN号 | 1385-8947 |
| 关键词 | Multiphase Viscous effect Mircoreaction Microfluidic Microchannel |
| DOI | 10.1016/j.cej.2019.05.051 |
| 通讯作者 | Chen, Guangwen(gwchen@dicp.ac.cn) |
| 英文摘要 | Characteristics of gas-liquid Taylor flow with different liquid viscosities are investigated in a rectangular microchannel, aiming at providing knowledge and aid in the design of processes involving viscous fluid, such as polymers and ionic liquids. The effect of liquid viscosity on the bubble formation dynamic, film thickness, bubble velocity, and pressure drop is investigated. The results reveal a specific viscous effect compared to those in square or circular channels. For the same capillary number, both the liquid film thickness at the corners and at the short planes are much larger than in square channels. New correlations are proposed for predicting the film thickness in the rectangular channel. The bubble shape sheared by the liquid phase is also distinct from literature observations that a smaller radius occurs at the rear cap. For the conditions studied (0.00065 < Ca < 0.0525), increasing the viscosity leads to an increase in the instantaneous flow rate, and also an later shift from filling stage to squeezing stage. As the bubble formation is driven by both squeezing pressure and shearing force, the bubble/slug length is affected by both capillary number and flow rate ratio. The recirculation inside liquid slugs is found to play an important role in the pressure drop, which can be well described by an empirical correlation including dimensionless liquid slug length and capillary number. |
| WOS关键词 | SLUG FLOW ; MASS-TRANSFER ; BUBBLE FORMATION ; SEGMENTED FLOW ; DROPLET FORMATION ; FLUID PROPERTIES ; PRESSURE-DROP ; LONG BUBBLES ; HYDRODYNAMICS ; MICROREACTOR |
| 资助项目 | National Natural Science Foundation of China[U1662124] ; National Natural Science Foundation of China[21676263] ; National Natural Science Foundation of China[91634204] ; CAS of the Youth Innovation Promotion Association CAS[2017229] ; DICP[ZZBS201706] ; Dalian Science & Technology Innovation Fund[2018J11CY019] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCIENCE SA |
| WOS记录号 | WOS:000471682900041 |
| 资助机构 | National Natural Science Foundation of China ; National Natural Science Foundation of China ; CAS of the Youth Innovation Promotion Association CAS ; CAS of the Youth Innovation Promotion Association CAS ; DICP ; DICP ; Dalian Science & Technology Innovation Fund ; Dalian Science & Technology Innovation Fund ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; CAS of the Youth Innovation Promotion Association CAS ; CAS of the Youth Innovation Promotion Association CAS ; DICP ; DICP ; Dalian Science & Technology Innovation Fund ; Dalian Science & Technology Innovation Fund ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; CAS of the Youth Innovation Promotion Association CAS ; CAS of the Youth Innovation Promotion Association CAS ; DICP ; DICP ; Dalian Science & Technology Innovation Fund ; Dalian Science & Technology Innovation Fund ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; CAS of the Youth Innovation Promotion Association CAS ; CAS of the Youth Innovation Promotion Association CAS ; DICP ; DICP ; Dalian Science & Technology Innovation Fund ; Dalian Science & Technology Innovation Fund |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/175783]  |
| 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 | Chen, Guangwen |
| 作者单位 | 1.Yantai Univ, Coll Chem & Chem Engn, Shandong Collaborat Innovat Ctr Light Hydrocarbon, Yantai 264005, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China 3.Dalian Maritime Univ, Sch Sci, 1 Linghai Rd, Dalian 116026, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yao, Chaoqun,Zheng, Jia,Zhao, Yuchao,et al. Characteristics of gas-liquid Taylor flow with different liquid viscosities in a rectangular microchannel[J]. CHEMICAL ENGINEERING JOURNAL,2019,373:437-445. |
| APA | Yao, Chaoqun,Zheng, Jia,Zhao, Yuchao,Zhang, Qi,&Chen, Guangwen.(2019).Characteristics of gas-liquid Taylor flow with different liquid viscosities in a rectangular microchannel.CHEMICAL ENGINEERING JOURNAL,373,437-445. |
| MLA | Yao, Chaoqun,et al."Characteristics of gas-liquid Taylor flow with different liquid viscosities in a rectangular microchannel".CHEMICAL ENGINEERING JOURNAL 373(2019):437-445. |
入库方式： OAI收割
来源：大连化学物理研究所
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