航天推进技术研究院主办
ZHAO Ruiyong,ZHANG Cuiru,LIU Junnian,et al.Investigation on influence of different area ratio on stability of centrifugal pump with variable working conditions[J].Journal of Rocket Propulsion,2016,42(04):35-40.
面积比对变工况泵性能稳定性影响的研究
- Title:
- Investigation on influence of different area ratio on stability of centrifugal pump with variable working conditions
- Keywords:
- variable thrust engine; centrifugal pump; low specific speed; area ratio; fuel pump stability
- 分类号:
- V434.2-34
- 文献标志码:
- A
- 摘要:
- 对不同面积比下某型变工况低比转速燃料泵的特性及稳定性进行了研究,发现减小面积比,泵水力损失相对较小,扬程特性曲线在大流量点趋于平坦;增大面积比,水力损失相对增大,扬程特性曲线在大流量点趋于陡峭.不同面积比下的泵稳定性研究表明,低工况下泵流量小,比转数低,泵稳定工作特别要使用大的面积比,泵效率会相比降低;高工况下泵流量大,比转数较高,泵稳定工作区域较宽,小的面积比可使泵扬程和效率值提高.
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