基于代数法的叶轮机叶片三维网格生成技术研究

Three-dimensional Mesh Generation Technology of Turbo Machine Based on Algebraic Method

论文根据网格法的基本思想和应用,用Fortran语言建立了一种快速而精确的代数算法,用于插值计算叶片截面空间点坐标,并给出了相应算例。算例表明生成的网格边界间距可以调节,正交性好,非常实用,质量令人满意。适用于计算流体力学工作者构造各种复杂的计算网格,并可以推广到各种复杂的空间曲线点的插值计算。

According to the basic idea and the applications of grid, a kind of quick and accurate algebraic method which is developed by Fortran development system is formulated and used for interpolating coordinates of turbo-machinery blade section points. The numerical examples show that the new algorithm has rapid convergence, that the grids generated by pres- ent method have adjustable density and good orthogonality near the boundary, the grid generated is practical and mesh quality is good. The method is very useful for generating complicated grids automatically for CFD researchers, and can be general- ized for point interpolating of all kinds of 3-dimensional curves.