二维可压粘性叶栅流场计算的预测修正迭代多重网格法

 本文中提出了一种解可压N-S方程的快速数值法。它由预测步,修正步,迭代步以及多重网格法构成。叶栅出口采用了一种使数值解收敛性进一步加快的技术,我们称之为定常无反射边界条件技术。本文应用了k-ε双方程紊流模型。 对若干叶栅在-13°～8°的攻角范围内进行了数值试验,并与对应的物理实验结果进行了比较。结果是满意的。

PREDICTION-CQRRECTION-ITERATION-MULTIGRiD METHOD FOR SOLVING 2-D VISCOUS CASCADE FLOW FIELD

In this paper, a rapid convergent numerical method is proposed to solve the compressible N-S equations. This method consists of prediction, correction iteration and multi-grid steps At cascade outlet, a skill called "steady anreflecting boundary condition" is applied to accelerating the convergence of the method. The turbulent model k-ε is used.Numerical experiments were carried out at incident angle range - 13°-8°for three cascades. Comparison of turning angle and pressure distribution coefficient Cp with corresponding physical experiments are quite satisfactory.