Effect of the number of blades on the performance and cavitation instabilities of a turbopump inducer with an identical solidity
Effect of the number of blades on the performance and cavitation instabilities of a turbopump inducer with an identical solidity
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DOI：
10.1007/s12206-015-1126-6
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发表时间：
2015-12
影响因子：
1.6
通讯作者：
Byung Yun Kang;Shin-Hyoung Kang
中科院分区：
文献类型：
--
作者：
Byung Yun Kang;Shin-Hyoung Kang
诱导轮与叶轮前向连接，以提高叶轮的吸力性能。本文对具有相同稠度的涡轮泵诱导轮叶片数效应进行了实验和数值研究。对于增稠度诱导器，随着叶片数目的增加，由于壁面摩擦损失，效率显著降低。然而，对于相同的固体诱导剂，效率略有下降。尽管如此，在空化起始点没有观察到固体效应的差异。只有在三叶式诱导轮中才观察到旋转空化现象。对于三叶式诱导轮，随着稠度的降低，高阶旋转空化现象消失。
An inducer is forward-attached to an impeller to improve the suction performance of the impeller. This paper documents an experimental and a numerical investigation of the number of blades effect of a turbopump inducer with an identical solidity. As the number of blades increased for the increased solidity inducer, the efficiency was significantly reduced because of the skin friction loss. However, the efficiency was slightly decreased for the same solidity inducer. Nonetheless, no difference was observed in the cavitation inception point for the solidity effect. The rotating cavitation was only observed in three-bladed inducers. In the case of three-bladed inducers, the higher order rotating cavitation disappeared as the solidity decreased.