bat365在线平台网站将通过腾讯会议定期举办计算数学学术报告,旨在交流流体力学偏微分方程数值算法领域的最新科研进展。2021 年1 月9 日bat365在线平台网站邀请到四川大学谢小平教授进行学术交流。
报告题目:An eXtended HDG method for Darcy-Stokes-Brinkman interface problems
报 告 人:谢小平
工作单位:四川大学
报告时间:2021-1-9 9:30-11:30;
腾讯会议ID:165 785 977
报告摘要:
We propose an interface/boundary-unfitted eXtended hybridizable discontinuous Galerkin (X-HDG) method for Darcy-Stokes-Brinkman interface problems in two and three dimensions. The method uses piecewise linear polynomials for the velocity approximation and piecewise constants for both the velocity gradient and pressure approximations in the interior of elements inside the subdomains separated by the interface, and uses piecewise constants for the numerical traces of velocity on the inter-element boundaries inside the subdomains as well as on the interface. Optimal error estimates are derived in the piecewise H^1-norm for the velocity and in the L^2-norm for the velocity and pressure. Numerical experiments confirm the theoretical results.
报告人简介:
谢小平,四川大学数学学院教授(博导),四川省学术和技术带头人,教育部新世纪优秀人才(2007),德国洪堡学者(2008-2009)。现兼任中国工业与应用数学学会油水资源数值方法专业委员会副主任委员,四川省普通本科高等学校数学类教学指导委员会委员(兼秘书长),中国工业与应用数学学会高性能计算与数学软件专业委员会委员,中国仿真学会集成微系统建模与仿真专业委员会委员。期刊《计算数学》、《高等学校计算数学学报》、《Mathematical Problems in Engineering》编委。主要研究领域为偏微分方程数值解、有限元法的理论及应用等。