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Confinements regulate capillary instabilities of fluid threads

文献类型：期刊论文

作者Chen XD(陈晓东); Xue CD(薛春东); Hu GQ(胡国庆)
刊名JOURNAL OF FLUID MECHANICS
出版日期2019-08-25
卷号873页码:816-834
关键词breakup coalescence microfluidics multiphase flow
ISSN号0022-1120
DOI10.1017/jfm.2019.426
通讯作者Hu, Gongqing(ghu@zju.edu.cn)
英文摘要We study the breakup of confined fluid threads at low flow rates to understand instability mechanisms. To determine the critical conditions between the earlier quasi-stable necking stage and the later unstable collapse stage, simulations and experiments are designed to operate at an extremely low flow rate. The critical mean radii at the neck centres are identified by the stop-flow method for elementary microfluidic configurations. Two distinct origins of capillary instabilities are revealed for different confinement situations. One is the gradient of capillary pressure induced by the confinements of geometry and external flow, whereas the other is the competition between the capillary pressure and internal pressure determined by the confinements.
分类号一类/力学重要期刊
WOS关键词MULTIPHASE FLOW ; LONG BUBBLES ; SIMULATIONS ; DROPLETS ; MOTION
资助项目National Natural Science Foundation of China[11772343] ; National Natural Science Foundation of China[11832017] ; National Natural Science Foundation of China[11572334] ; National Natural Science Foundation of China[11402274] ; CAS Key Research Program of Frontier Sciences[QYZDB-SSW-JSC036] ; CAS Strategic Priority Research Program[XDB22040403] ; Beijing Institute of Technology Research Fund Program for Young Scholars
WOS研究方向Mechanics ; Physics
语种英语
WOS记录号WOS:000473144000001
资助机构National Natural Science Foundation of China ; CAS Key Research Program of Frontier Sciences ; CAS Strategic Priority Research Program ; Beijing Institute of Technology Research Fund Program for Young Scholars
其他责任者Hu, Gongqing
源URL[http://dspace.imech.ac.cn/handle/311007/79431]  
专题力学研究所_非线性力学国家重点实验室
推荐引用方式
GB/T 7714		 Chen XD,Xue CD,Hu GQ. Confinements regulate capillary instabilities of fluid threads[J]. JOURNAL OF FLUID MECHANICS,2019,873:816-834.
APA 陈晓东,薛春东,&胡国庆.(2019).Confinements regulate capillary instabilities of fluid threads.JOURNAL OF FLUID MECHANICS,873,816-834.
MLA 陈晓东,et al."Confinements regulate capillary instabilities of fluid threads".JOURNAL OF FLUID MECHANICS 873(2019):816-834.

入库方式： OAI收割

来源：力学研究所

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