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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。
A program for calculating the viscous flow field in an arbitrary spinneret cascade is presented. Based on the explicit time-invariant finite volume method, the viscous bulk force method is used to simulate the turbulent viscous flow, and the computational efficiency is improved by using local time steps and multiple grids. The independent variables in the equation are selected at the vertices of the control body. The internal flow field of Hobson impulse vane, the flow field of NASA 37 # low-aspect ratio transonic compressor rotor on two blade surfaces and the flow field of Sanz supercritical compressor cascade were calculated. The calculated results are compared with the experimental results and the design results, which proves that this method can simulate the two-dimensional flow in the cascade and the three-dimensional flow in the rotor quickly and accurately. This method is a complement to the full three-dimensional viscous flow field calculation program, which has strong engineering practical significance.