Pressure measurement on casing wall and blade rows interaction of contra-rotating axial flow pump
Pressure measurement on casing wall and blade rows interaction of contra-rotating axial flow pump
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DOI：
10.1007/s11630-005-0025-z
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发表时间：
2005
影响因子：
2.5
通讯作者：
T. Shigemitsu;Tomoya Takano;A. Furukawa;K. Okuma;S. Watanabe
中科院分区：
文献类型：
--
作者：
T. Shigemitsu;Tomoya Takano;A. Furukawa;K. Okuma;S. Watanabe
针对研制高比转速轴流泵的需要，提出了对转转子的应用。为了使其稳定运行，减少非定常损失，必须弄清前后转子叶片排间的相互作用。本文采用锁相采样法测量了套管壁面的静压分布。对不同叶片数和弦长的两种类型的后转子进行了测量，发现对于两种类型的后转子，前转子的非定常压力波动比后转子的非定常压力波动更显著，并且是由后转子压力场引起的。为了更好地理解对转轴流泵叶片排间的相互作用，我们将详细讨论压力波动的影响。
An application of contra-rotating rotors has been proposed against a demand for developing higher specific speed axial flow pump. The blade rows interaction between front and rear rotors should be clarified for its stable operation and reduction of unsteady losses. In this paper, the static pressure distributions on casing wall are provided by measuring with the phase locked sampling method. The measurements are carried out for two types of the rear rotors with different blade number and chord length, and it is found that, for both types of rotors, the unsteady pressure fluctuations are more remarkable in the front rotor than in the rear rotor and they are caused by the rear rotor pressure field. The effects of pressure fluctuations will be discussed in more details toward understanding the blade rows interaction in the contra-rotating axial flow pump.