爆炸与冲击2013，Vol.33Issue(1)：29-37,9.
真实虚拟流方法在多介质可压缩流动模拟中的应用
Application of real ghost fluid method to simulation of compressible multi-fluid flows
摘要
Abstract
In order to avoid the difficulties of the original ghost fluid method (GFM) in simulating the interaction between shock wave and material (fluid-fluid, gas-water) interface with large density rati-o, the real ghost fluid method (RGFM) was adopted to treat the ghost points near the material interface, the HLLC ( Harten-Lax-Van Leer with contact discontinuities) Riemann solver was applied to solve the Euler equations, and the fifth-order weighted essentially nonoscillatory (WENO) scheme was implemented to solve the level set equation. Numerical simulations were carried out for one-dimensional and two-dimensional examples, respectively. Simulated results show that the RGFM is superior to the GFM, and the images by the RGFM can display more details of the interaction between shock wave and material interface, which include the distinct deformation and fragmentation of the material interfaces with high density ratios.关键词
流体力学/真实虚拟流法/HLLC/多介质流/level set方法Key words
fluid mechanics/ real ghost fluid method/ HLLC scheme/ multi-fluid flow/ level set method分类
数理科学引用本文复制引用
陈宏,朱卫兵,张小彬,孙润鹏,郭金鑫..真实虚拟流方法在多介质可压缩流动模拟中的应用[J].爆炸与冲击,2013,33(1):29-37,9.基金项目
中央高校基本科研业务费项目(HEUCF100203) （HEUCF100203）
高超声速冲压发动机技术重点实验室开放基金项目(20110103006) （20110103006）
