讲座主题：The Efficient Conservative S-DDM Method for Environmental Computation

主讲人：梁栋

工作单位：加拿大约克大学

讲座时间：2019年5月6日（周一）下午16:00

讲座地点：数学大会议室院341

主办单位：烟台大学数学与信息科学学院

内容摘要：

Groundwater environment computation is an important and difficult problem. Mathematical models describing multi-component pollution flows in porous media are the time-dependent and coupled nonlinear partial differential equations. Due to the complexity, the nonlinearity, and the large scale and long term of simulation and protection, it is important to develop efficient numerical methods for solving multicomponent pollution flows in parallel computing. In this talk, I will present our conservative S-DDM method that we develop for computing nonlinear multicomponent contamination flows in porous media over multiple non-overlapping domain decomposition. The significant feature of our 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 our proposed conservative method for computing nonlinear multicomponent pollution flows in environmental computation.

主讲人介绍：

梁栋，加拿大约克大学终身正教授, 计算数学、环境和能源数值模拟专家。在数值分析与科学计算、多孔介质渗流力学计算方法、大气环境计算、地下水污染计算和控制、海水入侵、计算电磁学和计算生物等研究领域取得了许多创造性成果。在国际权威学术杂志<<J. Comput. Phys.>>, <<SIAM J. Numer. Anal.>>, <<Numer. Math.>>, <<SIAM J. Sci. Comput.>>, <<IMA J. Numer. Anal.>>, <<IMA J. Appl. Math.>>, <<J. Aero. Sci.>>, <<Atoms. Environ.>>, <<J. Sci. Comput.>> 等学术期刊发表论文120余篇. 连续承担加拿大国家自然科学基金（NSERC）项目多项，承担加拿大MITACS项目和中国“973”大气环境项目课题。2012获加拿大NSERC的DAS奖励。