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报告题目：Recent Development on Modified Ghost Fluid Method

报告人：刘铁刚（北京航空航天大学）

时间：2017年1月3日上午11:20

地点：船海楼15楼大会议室

主办单位：科学技术研究院

承办单位：船舶工程学院

报告人简介：

Dr. Liu Tiegang received his BS and MS degrees in the Department of Mathematics, Peking University, Beijing, China, respectively, in 1986 and 1989, and obtained his PhD (Mech. Eng.), in the Department of Mechanical Engineering, National University of Singapore in 2001. From 1989 to 1995, he worked in the Computing Center, Chinese Academy of Science. From 1999 to 2007, he worked in the Institute of High Performance Computing, A*Star, Singapore. He is currently a professor in the School of Mathematics and Systems Science, Beihang University, China. His research interests include Numerical Method and simulation for compressible multi-medium and multi-phase flow, Modelling and Simulation of Fluid-Structure Interaction, Shape optimisation design.

报告简介:

It is still extremely challenging in modeling and simulating moving material interfaces with large density ratios and strong wave interaction. The Modified Ghost Fluid Method (MGFM) has provided us a robust way of handling such challenges, and overcomes the difficulties encountered by the original ghost fluid method proposed by Fedkiw et al. The MGFM has successfully applied to treat moving gas-gas, gas-liquid and fluid-structure interfaces in compressible fluid/media.

In this talk, I shall introduce the latest development and applications of the MGFM, including fast explicit Riemann problem solver to predict interface states, exact Riemann problem solver for treating elastic-plastic material, the coupling between compressible fluid and incompressible fluid.