A new approach to multi-phase field modeling and simulation
主 题: A new approach to multi-phase field modeling and simulation
报告人: Prof. Xiao-Ping Wang (Hong Kong University of Science and Technology)
时 间: 2014-07-28 10：00-11:00
地 点: 理科一号楼1418（联系人：李宝梅，62745950）
Phase field models are widely used to describe the two phase system in which each phase is represented by a smooth function called the order parameter. The evolution equation of the the system is usually derived by the gradient flow of the total free energy. The generalization of the approach to the N phase (N >=3) requires some extra consistency conditions in order for the model to give physically relevant results. We propose a projection approach for deriving the evolution equations for the multi-phase system. Efficient numerical methods are also developed for the system. We will also show some numerical results for dynamics of triple junction and four phase contact line.