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本文旨在发展一种二维叶栅不可压粘性流场计算的工程数值法。采用了主变量控制方程。在贴体非正交曲线坐标中求解运动方程。应用了一种新的叠加网格。用逆风因子法来确保数值解的稳定。应用压力修正代数方程来修正压力场,以满足连续方程。应用等效粘性系数紊流模型。最后对四种不同的叶栅在攻角-13°～+11°的范围内进行了数值试验,并将落后角以及分离点的位置与平面叶栅吹风数据作了比较,相互吻合是满意的。
This paper aims to develop a two-dimensional cascade incompressible viscous flow field calculation numerical method. Using the main variable control equation. Solve the equations of motion in the body non-orthogonal curvilinear coordinates. A new overlay grid is applied. Use the inverse wind factor method to ensure the stability of the numerical solution. Apply pressure correction algebraic equations to correct the pressure field to satisfy the continuous equation. Equivalent viscosity coefficient turbulence model is applied. Finally, four different cascades were tested in the angle of attack from -13 ° to +11 °. The falling angle and the position of the separation point were compared with that of the plane cascade. The results were in good agreement with each other .