A level-set method for moving contact lines with contact angle hysteresis
A level-set method for moving contact lines with contact angle hysteresis
复制标题
具有接触角滞后的移动接触线的水平设置方法
DOI:
10.1016/j.jcp.2020.109636
复制
发表时间:
2020
影响因子:
4.1
通讯作者:
Yue, Pengtao
中科院分区:
文献类型:
--
作者:
Zhang, Jiaqi;Yue, Pengtao
We develop a level-set method in the finite-element framework. The contact line singularity is removed by the slip boundary condition proposed by Ren and E (2007)[6], which has two friction coefficients: β N that controls the slip between the bulk fluids and the solid wall and β C L that controls the deviation of the microscopic dynamic contact angle from the static one. The predicted contact line dynamics from our method matches the Cox theory very well. We further find that the same slip length in the Cox theory can be reproduced by different combinations of (β N, β C L), based on which we come up with a computational strategy for mesh-independent results that can match the experiments. There is no need to impose the contact angle condition geometrically, and the dynamic contact angle automatically emerges as part of the numerical solution. With a little modification, our method can also be used to compute contact angle hysteresis, where the tendency of contact line motion is readily available from the level-set function. Different test cases, including code validation and mesh-convergence study, are provided to demonstrate the efficiency and capability of our method.
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影响因子:
3.7
作者:
Ding, Hang;Spelt, Peter D. M.
通讯作者:
Spelt, Peter D. M.
影响因子:
3.4
作者:
Seungwon Shin;J. Chergui;D. Juric
通讯作者:
D. Juric
影响因子:
4.1
作者:
LAFAURIE, B;NARDONE, C;ZANETTI, G
通讯作者:
ZANETTI, G
DOI:
10.1016/j.jcp.2018.11.029
发表时间:
2019-02
期刊:
J. Comput. Phys.
影响因子:
--
作者:
Jiaqi Zhang;P. Yue
通讯作者:
Jiaqi Zhang;P. Yue
影响因子:
3.7
作者:
Yue, Pengtao
通讯作者:
Yue, Pengtao