报告题目：The Conservative S-DDM Scheme for Multi-component Contamination Flows in Porous Media

报 告 人：Dong Liang, Professor, York University (Canada)

报告时间：2021年04月28日（周三） 9:30-10:30 (北京时间)

报告平台：腾讯会议 会议号:495 758 175  密码: 2021

会议链接：https://meeting.tencent.com/s/KBa10iB1KEUc

校内联系人：王翔 wxjldx@jlu.edu.cn

报告摘要：Modelling multi-component contamination flows in porous media is an important and difficult problem. Mathematical models describing multi-component contamination flows in porous media are the time-dependent and coupled nonlinear partial differential equations. Due to the complexity, the nonlinearity, the large scale and long term of simulation, and the protection of groundwater, it is important to develop efficient numerical methods for solving pollution flows in parallel computing. In this talk, I will present our conservative S-DDM scheme that we develop for parallel computing of nonlinear multi-component contamination flows over multiple non-overlapping domain decompositions, where local semi-implicit flux scheme is constructed on interfaces of subdomains and the splitting implicit solution-flux coupled scheme is constructed in interiors of subdomains. The significant feature of the scheme is that while it keeps the excellent advantages of the non-overlapping domain decomposition and the splitting technique, the developed algorithm conserves mass over the whole domain. Numerical experiments show the excellent performance of the developed method for computing nonlinear multi-component pollution flows in environmental computation.

报告人简介：梁栋教授, 加拿大约克大学(York University)终身正教授。长期从事偏微分方程数值解、环境和能源数值模拟、多孔介质渗流力学计算方法、计算电磁学等方面的研究工作。在大气环境气溶胶预测、油藏数值模拟、地下水环境计算、Maxwell方程计算、超材料电磁计算研究中取得重要成果。在包括国际权威学术期刊 J. Comput. Phys.; SIAM J. Numer. Anal.; SIAM J. Sci. Comput.; Numer. Math.; IMA J. Appl. Math.; IMA J. Numer. Anal.; Atmos. Environ.; J. Aerosol Sci.; J. Sci. Comput.; J. Nonlinear Sci.; IEEE Trans. Antennas Propagat.等发表期刊论文 110 余篇。2012年获得加拿大国家自然科学基金(NSERC)的DAS奖励。近年来,承担加拿大国家自然科学基金(NSERC)项目多项，并承担加拿大 MITACS 项目。