Many two-phase flow problems are complicated due to the existence of moving contact lines and shape transition of two-phase interfaces. Both numerical simulations and analytical study for these problems are quite challenging, especially to quantitatively compare with physical experiments. In this talk, we will show that the Onsager principle could be used as a powerful approximation tool in these problems. Some reduced models and efficient numerical methods can be derived by this approach.

许现民于2003年获南开大学学士学位，2009年获北京大学博士学位，曾先后在英国牛津大学、香港科技大学、德国亚琛工业大学进行学术访问或博士后研究。现任中国科学院数学与系统科学研究院副研究员、博士生导师。其主要研究兴趣是复杂多尺度多物理问题的建模、分析和计算，研究内容包括非线性弹性材料破坏、粗糙界面上浸润以及曲面上偏微分方程数值求解等问题。