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Theoretical analysis for dynamic contact angle hysteresis on chemically patterned surfaces

文献类型：期刊论文

作者Xu, Xianmin1; Wang, Xiaoping2
刊名PHYSICS OF FLUIDS
出版日期2020-11-01
卷号32期号:11页码:10
ISSN号1070-6631
DOI10.1063/5.0027747
英文摘要A dynamic wetting problem is studied for a moving thin fiber inserted in fluid and with a chemically inhomogeneous surface. A reduced model is derived for contact angle hysteresis by using the Onsager principle as an approximation tool. The model is simple and captures the essential dynamics of the contact angle. From this model, we derive an upper bound of the advancing contact angle and a lower bound of the receding angle, which are verified by numerical simulations. The results are consistent with the quasi-static results. The model can also be used to understand the asymmetric dependence of the advancing and receding contact angles on the fiber velocity, which was observed recently in the physical experiments reported in the work of Guan et al. ["Asymmetric and speed-dependent capillary force hysteresis and relaxation of a suddenly stopped moving contact line," Phys. Rev. Lett. 116, 066102 (2016)].
资助项目NSFC[DMS-11971469] ; National Key R&D Program of China[2018YFB0704304] ; National Key R&D Program of China[2018YFB0704300]
WOS研究方向Mechanics ; Physics
语种英语
WOS记录号WOS:000589618000002
出版者AMER INST PHYSICS
源URL[http://ir.amss.ac.cn/handle/2S8OKBNM/52485]  
专题中国科学院数学与系统科学研究院
通讯作者Xu, Xianmin
作者单位1.Chinese Acad Sci, Acad Math & Syst Sci, NCMIS, ICMSEC,LSEC, Beijing 100190, Peoples R China
2.Hong Kong Univ Sci & Technol, Dept Math, Kowloon, Clear Water Bay, Hong Kong, Peoples R China
推荐引用方式
GB/T 7714		 Xu, Xianmin,Wang, Xiaoping. Theoretical analysis for dynamic contact angle hysteresis on chemically patterned surfaces[J]. PHYSICS OF FLUIDS,2020,32(11):10.
APA Xu, Xianmin,&Wang, Xiaoping.(2020).Theoretical analysis for dynamic contact angle hysteresis on chemically patterned surfaces.PHYSICS OF FLUIDS,32(11),10.
MLA Xu, Xianmin,et al."Theoretical analysis for dynamic contact angle hysteresis on chemically patterned surfaces".PHYSICS OF FLUIDS 32.11(2020):10.

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来源：数学与系统科学研究院

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