【摘要】 给出了以气流角β为特征参数的S_z流面上的运动方程,其中叶片力F用S₂流面的几何参数表示,使叶列内的求解得到简化.着重讨论了沿叶高的损失分布,级后的平均参数,熵的梯度的计算.以两个算例分别说明了多级透平中熵和焓积累的影响,以及叶列间隙中的计算和叶列内计算的比较.更多还原

【Abstract】 The equations,of motion on S2 stream-surface are presented with the flow angle β as a characteristic parameter. The solution of these equations within the blade channels is simplified by expressing the blade force F in terms of the geometric parameters of the stream-surface.Emphasis is laid upon the discussion of the loss-distribution along the blade length and the calculation of the average flow conditions and entrppy gradient behind the stage.Two calculated examples are given. One of them shows the effects of the entropy and enthalpy accumulation in multistage turbines. The other compares the solutions of the equations within the blade channels and in the axial gap between two blade rows.更多还原