多部件组合体分块网格生成技术及应用

Multiblock Grid Generation Technique for Multicomponent Combination and Its Application

给出多部件组合体分块网格生在的一种方案及实践，包括交界面网格生成技术、空间网格生成方法及质量控制。以一个平尾和机翼具有一定高度差的机身－机翼－平尾－立尾组合体外形为例，生成与公共交界面或边界面正交或接近正交的分块网格。用于Ｅｕｌｅｒ方程跨声速来流几个迎角的计算，结果与实验符合较好。

A multiblock grid generation technique is described including interface grid generation technique and volume grid generation method.A multiblock grid approximately orthogonal to interfaces or boundaries around a wing body tail combination is generated as an example.The grid generation practice indicates that the orientation,the curvature of the interafce and the grid point distribution on it have a great influence on the volume grid generation in the blocks bounded by it.The agreement with experiments of the predicted wing surface pressure distribution by Euler equations in the generated grid shows that the grid is of high quality.