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通过油流显示试验,了解了对旋轴流风机二级叶片在多种工况特别是小流量时的内部流动特征,并详细分析了二级叶片吸力面和压力面随着流量减小内部涡流特征的变化情况,为改善对旋轴流风机工况性能的理论研究和实践提供了试验基础。
Through the oil flow test, the internal flow characteristics of the second-stage blades of the rotary-axis flow fan under different working conditions, especially the low flow rate, are analyzed. The suction side and the pressure surface of the second-stage blades are analyzed in detail as the internal flow decreases Characteristics of the changes in order to improve the performance of the axial-flow fan performance theoretical research and practice provides the experimental basis.