Academy of Mathematics and Systems Science, CAS
Colloquia & Seminars

Speaker:	何晓明教授, Department of Mathematics and Statistics, Missouri University of Science and Technology
Inviter:	龚伟
Title:	A decoupled, linear, and unconditionally energy stable finite element method for a two-phase ferrohydrodynamics model
Language:	Chinese
Time & Venue:	2022.12.09 10:00-11:00 腾讯会议：111-129-126
Abstract:	In this talk, we present numerical approximations of a phase-field model for two-phase ferrofluids, which consists of the Navier-Stokes equations, the Cahn-Hilliard equation, the magnetostatic equations, as well as the magnetic field equation. By combining the projection method for the Navier-Stokes equations and some subtle implicit-explicit treatments for coupled nonlinear terms, we construct a decoupled, linear, fully discrete finite element scheme to solve the highly nonlinear and coupled multi-physics system efficiently. The scheme is provably unconditionally energy stable and leads to a series of decoupled linear equations to solve at each time step. Through numerous numerical examples in simulating benchmark problems such as the Rosensweig instability and droplet deformation, we demonstrate the stability and accuracy of the numerical scheme.