報告題目：The Conservative S-DDM Scheme for Multi-component Contamination Flows in Porous Media
報 告 人：Dong Liang, Professor, York University (Canada)
報告時間：2021年04月28日（周三） 9:30-10:30 (北京時間)
報告平台：騰訊會議 會議号:495 758 175 密碼: 2021
會議鍊接：https://meeting.tencent.com/s/KBa10iB1KEUc
校内聯系人：王翔 wxjldx@jlu.edu.cn
報告摘要：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.
報告人簡介：梁棟教授, 加拿大約克大學(York University)終身正教授。長期從事偏微分方程數值解、環境和能源數值模拟、多孔介質滲流力學計算方法、計算電磁學等方面的研究工作。在大氣環境氣溶膠預測、油藏數值模拟、地下水環境計算、Maxwell方程計算、超材料電磁計算研究中取得重要成果。在包括國際權威學術期刊 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.等發表期刊論文 110 餘篇。2012年獲得加拿大國家自然科學基金(NSERC)的DAS獎勵。近年來,承擔加拿大國家自然科學基金(NSERC)項目多項，并承擔加拿大 MITACS 項目。
