Euler-Lagrange耦合计算的GEL方法

Euler-Lagrange coupling with GEL

1.
Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900, Sichuan, China;
2.
Laboratory for Shock Wave and Detonation Physics, Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900, Sichuan, China

摘要: 研究了一种Euler-Lagrange耦合数值方法ghost-fluid Euler-Lagrange(GEL)方法，编写了GEL二维计算程序。其中Euler流场计算采用以SCB格式编制的二阶计算程序，Lagrange域计算采用DEFEL二维动力有限元程序。通过一维黎曼问题的计算结果与高精度PPM方法进行的比较，以及二维移动边界cylinder lift-off problem的计算结果与文献的对比，验证了GEL方法和本文程序的正确性。
- 流体力学 /
- Euler-Lagrange耦合 /
- GEL方法 /
- ghost fluid
Abstract: With Ghost-fluid Euler-Lagrange (GEL) method，a two-dimensional code was developed to couple an Eulerian program(SCB scheme) with a Lagrangian code(DEFEL: 2-D finite element code). Comparing the result of a one-dimensional Riemman problem with one resolved by high-resolution PPM method, and the result of a moving boundaries test in two dimension: cylinder lift-off problem with one from reference verified the GEL method and our code.
- fluid mechanics /
- Euler-Lagrange coupling /
- GEL method /
- ghost fluid method