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A level-set immersed interface method for simulating the electrohydrodynamics
Xu, Jian-Jun1; Shi, Weidong2; Hu, Wei-Fan3; Huang, Jun-Jie4
2020
摘要A method is proposed for simulating the electrohydrodynamics (EHD). The level-set method is used to capture the interface to take its advantage in handling topological change. In order to accurately solve the Poisson equation with interface jump conditions for the electric potential, a simple version of the level-set based immersed interface method (IIM) is developed. This version avoids the local coordinate transform in the original IIM in literature, reducing the complexity of the algorithm significantly. The IIM achieves second-order accuracy for both the electric potential and its gradient. A level-set extrapolation procedure is presented to calculate the electric surface force. Numerical simulations on drop deformation, breakup and coalescence in both 2D and 3D are presented. (C) 2019 Elsevier Inc. All rights reserved.
关键词Level-set method Immersed interface method Electrohydrodynamics Leaky dielectric model Drop breakup Drop coalescence
DOI10.1016/j.jcp.2019.108956
发表期刊JOURNAL OF COMPUTATIONAL PHYSICS
ISSN0021-9991
卷号400页码:18
通讯作者Shi, Weidong(shiwd@sxufe.edu.cn)
收录类别SCI
WOS记录号WOS:000494841600005
语种英语