A method to improve the efficiency of the turbine through-flow passage using the technique of boundary layer suction is introduced.
介绍采用边界层抽吸提高透平通流部分效率的方法。
Comparison of vacuum is made between the single and double suction vacuum pump, between the unit with balance passage and that without balance passage.
对单级与双级抽气开平衡通道与不开平衡通道的真空泵的真空度进行了对比分析。
Subsequently, the pressure loss of the air passage is analyzed, when none of winding units is splicing, in order to achieve the reasons of the pressure loss and suction uneven.
然后，从理论上对所有络筒单元均不进行捻接时的风道的压力损失进行分析，找出压力损失的原因以及吸风不均匀的原因。
Compared the pressure distributions of the air passage before and after improvement, it argues that after improvement the pressure loss is decreased, and the suction is more uniform.
将其模拟结果与前面章节所得到的改进前的风道分析结果进行对比，证明改进后的风道能够有效的降低压力损失，同时使吸风相对均匀。
A annular flow passage is divided by isosceles-trapezoid-like baffle blocks, suction inlets and outlets are provided on both sides.
环形流道由类似等腰梯形的隔板挡块分割开来，两边分设吸入口和排出口。
In design condition, the flow blockage, loss, turbulence and noise at the exit focus mainly in the tip mid-passage, wake and the corner between the hub and the suction surface;
设计状态转子出口流动阻塞、损失、高水平紊流脉动及噪声主要发生在叶尖通道中部、尾迹和叶根吸力面角区；
In design condition, the flow blockage, loss, turbulence and noise at the exit focus mainly in the tip mid-passage, wake and the corner between the hub and the suction surface;
设计状态转子出口流动阻塞、损失、高水平紊流脉动及噪声主要发生在叶尖通道中部、尾迹和叶根吸力面角区；
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