天天爱彩票

 
理学论坛第一百五十五次学术活动(穆振国报告)
发布时间: 2019-04-24   浏览次数: 13

报告题目:Efficient local energy dissipation preserving algorithms for theCahnHilliard equation

报告人:穆振国

报告人单位:南京邮电大学

时间2019425日1500-1600

地点:仙林校区教2-314室

主办单位:天天爱彩票注册

报告内容In this talk, we show that the Cahn–Hilliard equation possesses alocal energy dissipation law, which is independent of boundary conditionsand produces much more information of the original problem. To inherit the intrinsic property, we derive three novel local structure-preserving algorithms for the 2D Cahn–Hilliard equation by the concatenating method. Thanks to the Leibnitz rules and properties of operators, the three schemes are rigorously proven to conserve the discrete local energy dissipation law in any local time–space region. Under periodic boundary conditions, the schemes are proven to possess the discrete mass conservation and total energy dissipation laws. Numerical experiments are conducted to show the performance of the proposed schemes.

报告人简介:穆振国,南京邮电大学天天爱彩票注册,2018年博士毕业于南京师范大学。主要研究兴趣为偏微分方程的保结构算法。近几年International Journal of Computer MathematicsAdvances in Applied Mathematics and Mechanics Journal of Computational Physics等杂志发表多篇论文。