The Modified Ghost Fluid Method as Applied to Extreme Fluid-Structure Interaction in the Presence of Cavitation  

作　　者：T.G.Liu B.C.Khoo W.F.Xie 

机构地区：[1]Institute of High Performance Computing,#01-01 The Capricorn,Singapore Science Park II,Singapore 117528 [2]Department of Mechanical Engineering,National University of Singapore,Singapore 119260

出　　处：《Communications in Computational Physics》2006年第5期898-919,共22页计算物理通讯（英文）

摘　　要：In this work,the modified Ghost Fluid Method is further developed to ap-ply to compressible fluid coupled to deformable structure,where the pressure in the structure or flow can vary from an initial extremely high magnitude(such that the solid medium can be under plastic compression)to a subsequently very low quantity(so that cavitation can occur in the fluid).New techniques are also developed in the definition of the ghost fluid status when the structure is under plastic deformation or when the flow is under cavitation next to the structure.Numerical results show that the improved MGFM for treatment of the fluid-deformable structure coupling works efficiently for all pressure ranges and is capable of simulating cavitation evolution and cavitation re-loading in conjunction with the employment of the isentropic one-fluid cavitation model.

关 键 词：Ghost fluid method(GFM) modified ghost fluid method(MGFM) one-fluid cavi-tation model cavitation reloading cavitation-structure interaction 

分 类 号：TP3[自动化与计算机技术—计算机科学与技术]