A conservative level set method for contact line dynamics

作者：Zahedi Sara^*; Gustavsson Katarina; Kreiss Gunilla

来源：Journal of Computational Physics, 2009, 228(17): 6361-6375.

DOI：10.1016/j.jcp.2009.05.043

• Contact line
• Contact angles
• Level set method
• Conservative method
• Two-phase flow

A new model for simulating contact line dynamics is proposed. We apply the idea of driving contact-line movement by enforcing the equilibrium contact angle at the boundary, to the conservative level set method for incompressible two-phase flow [E. Olsson, G. Kreiss, A conservative level set method for two phase flow, J. Comput. Phys. 210 (2005) 225-246]. A modified reinitialization procedure provides a diffusive mechanism for contact-line movement, and results in a smooth transition of the interface near the contact line without explicit reconstruction of the interface. We are able to capture contact-line movement without loosing the conservation. Numerical simulations of capillary dominated flows in two space dimensions demonstrate that the model is able to capture contact line dynamics qualitatively correct.

• 出版日期2009-9-20