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本文以小扰动理论为基础,应用非定常、二元、不可压的流动模型,详细地导出了轴流压气机双排和单排叶片的旋转失速起始准则,并设计了它的计算机程序。预估值和实验值的吻合,证明了理论分析的可靠性。通过分析双叶排的轴向间距对损失及整个流场结构的影响,解释了静叶排加入对旋转失速发生所起的抑制作用。
Based on the theory of small perturbation, this paper applies the unsteady, binary and incompressible flow model to derive the starting criteria for the rotational stall of double-row and single-row blades of axial-flow compressor in detail and design its computer program. The agreement between the predicted and experimental values proves the reliability of the theoretical analysis. By analyzing the influence of the axial distance of the double row blades on the loss and the structure of the whole flow field, the inhibition effect of the stator blade row on the occurrence of the rotation stall is explained.