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数值模拟计算了为实现旋翼翼尖喷流驱动的引流管道内部流动,分析了管道出口形状对引流管道流动的影响.通过对比不同入口压力以及不同管道出口形状对引流管道的总压损失的影响,分析不同情形下对引流管道的出口流量、流动的出口速度的影响,综合得出对产生的转动力矩的影响,以此验证了通过内置管道引流实现翼尖喷流驱动的可行性,以找到一种实用的使引流管道的损失最小的引流管道设计方法.
The effects of the shape of the outlet of the pipe on the flow of the drainage pipe were analyzed numerically to calculate the internal flow of the drainage pipe driven by the rotor tip jet.According to the influence of different inlet pressures and different outlet shapes on the total pressure loss of the drainage pipe, The influence of different conditions on the outlet flow rate and exit velocity of the draft tube was analyzed and the influence on the rotational torque was concluded. The feasibility of the tip jet flow driving through the built-in tube flow was verified to find a A practical way to minimize the loss of drainage pipe drainage pipe design.