叶栅通道湍流流场的数值模拟方法的研究

Numerical investigation and application of turbulent flow for plane cascade

采用标准k-ε湍流模型及壁面函数法对双圆弧平面叶栅通道进行数值模拟,开发了二维任意曲线坐标系下采用同位网格布局、能计算跨音速可压缩流动的SIMPLE方法计算程序。为提高精度,采用QUICK格式、CUI格式在不同的网格分布下计算,计算结果与文献和实验数据吻合较好。

To educe the transformational and discrete process of two-dimensional flow control equation in arbitrary curve coordinate system. The standard k-ε model and wall function method are utilized to describe plane cascade routeway. The more important thing is that a calculational program based on SIMPLE arithmetic is exploited to calculate compressived flow. For improving computational precision, the high resolution scheme QUICK and CUI scheme are employed to discretize the convective transport terms under different grid distributing. The agreement between the calculated numerical results and experimental data or other numerical results available in literature is good.