任意旋成面叶栅内粘性流场的数值计算

介绍了一种用于任意旋成面叶栅内粘性流场计算程序。以有限体积显式时间推进方法为基础，用粘性体积力方法模拟湍流粘性流动，用局部时间步长和多重网格方法提高计算效率，方程中的自变量选取在控制体顶点。计算了Ｈｏｂｓｏｎ冲动式叶型内部流场，ＮＡＳＡ３７＃低展弦比跨音速压气机转子在两个叶高回转面上流场，Ｓａｎｚ超临界压气机叶栅内部流场。计算结果与实验结果和设计结果进行了比较，从而证明本方法能够快速、准确地模拟叶栅内部的二维流动和转子内部的三维流动。该方法是对全三维粘性流场计算程序的一个补充，具有较强的工程实用意义。

Viscous flow field calculation of general blade to blade surface

A fast and accurate blade to blade viscous code which uses finite volume time marching method for solving the flow field of turbomachinery has been established. The code uses H meshes to build discrete equation. To accelerate convergence, local time stepping, residual smoothing and multigrid method are also applied. The viscous effects are approximated by a very simple mixing length model. Test cases of Hobson's second impulse cascade, a compressor rotor of NASA Rotor 37 and Sanz's supercritical compressor cascade are presented. Results of Mach number distributions show good agreements with experimental or design data. All results illustrate that the method described can be used widely in engineering design of turbomachinery.