Study on inducer and impeller of a centrifugal pump for a rocket engine turbopump
Study on inducer and impeller of a centrifugal pump for a rocket engine turbopump
复制标题
DOI：
10.1177/0954406212449939
复制
发表时间：
2013-02
期刊：
影响因子：
--
通讯作者：
Soon-Sam Hong;Dae-Jin Kim;Jin-Sun Kim;C. Choi;Jinhan Kim
中科院分区：
文献类型：
--
作者：
Soon-Sam Hong;Dae-Jin Kim;Jin-Sun Kim;C. Choi;Jinhan Kim
对液体火箭发动机涡轮泵燃料泵进行了水力性能试验。由电动机驱动的泵在水环境中进行测试。试验结果表明，诱导轮对泵的扬程和效率影响不大，但对汽蚀性能影响很大。此外，还进行了诱导轮自主试验，详细研究了诱导轮对泵性能的影响，发现当诱导轮扬程下降55%时，泵达到临界汽蚀点。考虑到诱导轮与离心叶轮之间的流动干扰，计算了附加诱导轮后离心泵所需的净正吸程的降低，计算结果与试验结果吻合较好。
A hydraulic performance test is conducted for a fuel pump of a liquid rocket engine turbopump. The pump driven by an electric motor is tested in a water environment. Experimental results indicate that the inducer has a negligible effect on the head and efficiency of the pump but a significant effect on the cavitation performance. Additionally, an autonomous inducer test is carried out to investigate the effect of the inducer on the pump performance in more detail, and it is found out that the pump reaches a critical cavitation point when the inducer head is dropped by 55%. A reduction of required net positive suction head of the centrifugal pump by attachment of an inducer is also calculated considering the flow interference between the inducer and the centrifugal impeller, and it is found that the calculation shows a reasonable agreement with the test.