Speaker: Zhong, Weigang (IMA)
Title: Modified immersed boundary modeling and simulation of concentrated suspensions
Abstract: One major example of dense multiphase flows in engineering is the extrusion process which is a crucial part in the industrial production of ceramic products. I study the extrusion batch flow through multi-scale modeling and a modified immersed boundary (IB) method with direct-forcing. A software package (IBAMR) with support for Cartesian grid adaptive mesh refinement developed by B. Griffith from New York University is utilized to implement the IB method. Preliminary numerical experiments for suspensions with mono-disperse and poly-disperse particles provide evidence for this new IB method's potential for solving the problems of extrusion flow.