摘要
采用求解二维及三维椭圆型偏微分方程方法生成复杂外形的贴体及与边界正交网格。并采用分区、局部修正等手段提高网格质量。所得的网格用于导弹、全机、全机带外挂等多种外形的流场计算 ,结果与实验吻合良好。
We use 2 D and 3 D elliptic grid generation method, together with transfinite interpolation to generate mono block grids of complex configurations. According to the idea of Hilgenstock, the source items are calculated to control the othogonality and spacing of grid lines on boundaries. Techniques including zonal decomposition and local refinement are proposed, which greatly improve the speed and robustness of the method, as well as the quality of grid generated. Our method is applied to two practical configurations: one is a complete fighter with store, and the other a missile. Both configurations are extremely complex. However, with our method, mono block grids with good orthogonality are successfully generated. With the generated grids, numerical flow field analyses are performed. The results are in good agreement with experiment data as shown in Figs.5 and 7.
出处
《西北工业大学学报》
EI
CAS
CSCD
北大核心
2000年第2期194-197,共4页
Journal of Northwestern Polytechnical University
基金
航空科学基金资助! ( 98A53 0 0 5)
关键词
网格生成
复杂外形
椭圆型方程
飞行器
grid generation, complex configuration, numerical flow analysis, mono block grids
