Theoretical analysis for dynamic contact angle hysteresis on chemically patterned surfaces

doi:10.1063/5.0027747

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	Theoretical analysis for dynamic contact angle hysteresis on chemically patterned surfaces
	Xu, Xianmin 1; Wang, Xiaoping 2
	2020-11-01
发表期刊	PHYSICS OF FLUIDS
ISSN	1070-6631
卷号	32 期号:11 页码:10
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)].
DOI	10.1063/5.0027747
收录类别	SCI
语种	英语
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
WOS类目	Mechanics ; Physics, Fluids & Plasmas
WOS记录号	WOS:000589618000002
出版者	AMER INST PHYSICS
引用统计
文献类型	期刊论文
条目标识符	http://ir.amss.ac.cn/handle/2S8OKBNM/52486
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.