Abstract: The Modified Ghost Fluid Method (MGFM) has provided us a robust way of treating material interfaces with a large density ratio. In this talk, I shall introduce the latest development and application of the MGFM in underwater explosions. With the help of MGFM and the isentropic one-fluid cavitation model developed by us, we can easily treat the fluid-structure nonlinear interaction in the occurrence of cavitation, and capture cavitation evolution and cavitation reloading. 

 

About the Speaker: Dr. Liu Tiegang received his B.S. and M.S. degrees in the Department of Mathematics, Peking University, Beijing, respectively, in 1986 and 1989, and obtained his PhD (Mech. Eng.), in the Department of Mechanical Engineering, National University of Singapore in 2001. He worked as a senior research engineer in the Institute of High Performance Computing from 1999 to 2007. He is currently a professor in Beijing University of Aeronautics & Astronautics. His current areas of research interest include Flow Structure Interaction, Riemann problem solver for multi-phase flow, Modeling of Cavitation, High Resolution Method for Multi-medium/Multi-phase flow.

  

Date&Time: May 16, 2013 (Thursday),16:00 -17:00
Location:  606 Conference Room