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解压气机的特性问题是属于叶片机的正问题。本文采用流线曲率法解主方程。受解的唯一性限制,在解超、跨音速压气机流场时,本文提出了利用叶片机反问题的数学处理方法解决叶片机正问题的方法和步骤,这是本文所具有的特点之一;同时本文还综合实验数据提出了适用于多圆弧叶型和双圆弧叶型的损失模型和落后角模型;提出的方法考虑了子午速度比和阻尼台的影响。所以本文所提供的方法考虑了近代超、跨音速级压气机的特征。经过一台跨音速转子和一台超音速级压气机的算例的特性计算和实验结果的对比,除堵塞流量附近的个别点外、最大误差不超过0.068,所以利用本方法可以得到满意的结果。
Decompressor characteristics of the problem belongs to the positive problem of the blade machine. In this paper, streamline curvature method to solve the main equation. In this paper, the method and procedure for solving the positive problem of the blade machine using the mathematical treatment of the inverse problem of the blade machine are proposed in this paper, which is one of the characteristics of this paper At the same time, the paper also proposed the loss model and the backward angle model applicable to the multi-arc and double-circular arcs based on the experimental data. The proposed method considers the effect of the meridional velocity ratio and the damping platform. Therefore, the method provided in this paper considers the characteristics of modern super and transonic compressor. Comparing the characteristic calculation and experimental results of a transonic rotor and a supersonic compressor, the maximum error except the individual points near the blockage flow does not exceed 0.068, so satisfactory results can be obtained by this method .