南京理工大学学报（自然科学版）2011，Vol.35Issue(6)：811-816,6.
激波诱导气泡破碎过程的数值模拟
Numerical Simulation of Shock-induced Bubble Collapse
摘要
Abstract
To simulate the dramatic changes of the material interface in compressible multi-medium flow,the mesh distortion and topology changes induced by the motion of the material, interface are dealt with by using developed unstructured moving grids generation approach with large-scale deformation and topological changes. Lagrange interface is constructed by Riemann solver for tracking the multi-medium interface explicitly. Modified ghost fluid method is adopted to construct the boundary conditions of the material interface, and conservative arbitrary Lagrangian-Eulerian formulas are solved in each medial relatively. The collapse of the cylindrical helium bubble in air and the 2D air cavity in water induced by shock is simulated. The results indicate that the interface tracking method for multi-medium flow based on unstructured moving grids developed here is effective to handle the topological changes induced by the interface.关键词
激波/气泡破碎/可压缩多介质流/改进型虚拟流体方法/任意朗格朗日欧拉方法Key words
shock/ bubble collapse/ compressible multi-medium flow/ modified ghost fluid method/arbitrary Lagrangian-Eulerian method分类
数理科学引用本文复制引用
邓树升,谭俊杰..激波诱导气泡破碎过程的数值模拟[J].南京理工大学学报（自然科学版）,2011,35(6):811-816,6.基金项目
国家自然科学基金(104776011 （）
11072114) （）
