Effect of the Casing Configurations on the Internal Flow and Unsteady Pressure Fluctuation in Rocket Pump Inducer
Effect of the Casing Configurations on the Internal Flow and Unsteady Pressure Fluctuation in Rocket Pump Inducer
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火箭泵导轮壳体结构对内部流动和非定常压力脉动的影响
DOI：
10.2322/jjsass.53.266
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发表时间：
2005
期刊：
影响因子：
--
通讯作者：
K. Kamijo
中科院分区：
文献类型：
--
作者：
Mitsuru Shimagaki;Hiroyuki Haga;Tomoyuki Hashimoto;Mitsuo Watanabe;S. Hasegawa;T. Shimura;K. Kamijo
在一个3叶片诱导轮上研究了进气道结构对非定常空化的影响。利用粒子图像测速技术（PIV）和高速摄像技术对两种不同机匣的入口流动和空化形态进行了可视化研究。结果表明，增大诱导轮进口处的叶顶间隙可以抑制旋转空化。叶尖泄漏流中的旋涡空化和回流中的空化被认为是进气道结构对旋转空化出现的影响。
The effects of the inlet casing configurations on unsteady cavitation were examined with a 3-bladed inducer. The inlet flow and cavitation pattern in two different casings were visualized using PIV (particle image velocimetry) and high-speed video. It was found that the rotating cavitation would be suppressed when the tip clearance at the inducer inlet was increased. The vortex cavitation in tip leakage flow and cavitation in back flow is considered to affect the appearance of the rotating cavitation by the inlet casing configuration.