Euler solution using adaptive Cartesian grid with a gridless boundary treatment |
| |
Authors: | Liang Xiang Guowei Yang |
| |
Institution: | (1) LHD of Institute of Mechanics, Chinese Academy of Sciences, 100190 Beijing, China |
| |
Abstract: | A quadtree-based adaptive Cartesian grid generator and flow solver were developed. The grid adaptation based on pressure or
density gradient was performed and a gridless method based on the least-square fashion was used to treat the wall surface
boundary condition, which is generally difficult to be handled for the common Cartesian grid. First, to validate the technique
of grid adaptation, the benchmarks over a forward-facing step and double Mach reflection were computed. Second, the flows
over the NACA 0012 airfoil and a two-element airfoil were calculated to validate the developed gridless method. The computational
results indicate the developed method is reasonable for complex flows.
The project was supported by the National Natural Science Foundation of China (10672168). |
| |
Keywords: | Cartesian grid Gridless method Adaptation technique Euler solution |
本文献已被 CNKI 维普 SpringerLink 等数据库收录! |
|