贴体网格生成技术中正交性和空间疏密控制研究

Control of grid spacing and orthogonality in numerical generationof body-fitted curvilineal coordinate system

在综合阐述网格生成技术对流场数值计算重要性的基础上，提出了一种非周期性叶栅流场网格的数值生成方法。该方法对任意曲线（面）边界生成正交性理想的网格具有普适性，且可以对整个区域网格的正交性进行有效的控制。此外，本文还对网格正交性和疏密分布之间的关系进行了探讨，给出了影响网格正交性的因素和改进方法。

With discussion of the importance of grid generation techniques for fluid fieldscalculation, an non- periodicity grid generation method is presented in this paper. It is univer-sal for the grid spacing and the grid generation of arbitrary geometrical shape and theorthogonality can be controlled easily and conveniently. In addition, the relationship betweenorthogonality and spacing and the influencial factors for orthogonality are discussed. The corre-sponding improving skill is suggested as well.