航天推进技术研究院主办
[1]李龙贤,丁振晓,吴玉珍.基于热力学效应修正的诱导轮空化模型研究[J].火箭推进,2019,45(05):52-58102.
LI Longxian,DING Zhenxiao,WU Yuzhen.Research on cryogenicinducer cavitation model modified by thermodynamic effect[J].Journal of Rocket Propulsion,2019,45(05):52-58102.
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LI Longxian,DING Zhenxiao,WU Yuzhen.Research on cryogenicinducer cavitation model modified by thermodynamic effect[J].Journal of Rocket Propulsion,2019,45(05):52-58102.
基于热力学效应修正的诱导轮空化模型研究
《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V]
卷:
45
期数:
2019年05期
页码:
52-58102
栏目:
研究与设计
出版日期:
2019-10-30
- Title:
- Research on cryogenicinducer cavitation model modified by thermodynamic effect
- 文章编号:
- 1672-9374(2019)05-0052-07
- Keywords:
- inducer; cryogenic working medium; thermodynamic effect; cavitation model; numerical simulation
- 分类号:
- V434.21
- 文献标志码:
- A
- 摘要:
- 液体火箭发动机的诱导轮抽吸性能受到工质热力学效应的影响,低温工质的热力学效应对诱导轮空化工况下的工作性能影响尤为显著。由于热力学效应对气泡的增长有抑制作用,低温工质的热力学效应能改善诱导轮在空化工况下的工作特性,但目前国内对此问题的认识依然只停留在定性的层面。为了更准确地理解诱导轮在低温工质中的工作特性,必须定量地考虑这种由热力学效应所导致的影响。在Rayleigh-Plesset方程的基础上推导出了一种基于热力学效应修正的空化模型,并将此模型编译成程序模块应用于液体火箭发动机氧泵诱导轮的数值计算。对数值计算结果进行定量的后处理分析,并与发动机空化工况下的热试车数据进行对比验证了模型的准确性。
- Abstract:
- The liquid rocket engine inducer characteristic is impact by working medium thermodynamic effect, especial for cryogenic working medium.The inducer cavitation characteristic could be improved by cryogenic medium thermodynamic effect, because which could suppress babble growing.However, the research for this issue still remain qualitatively in domestic study currently.Quantitative research for thermodynamic effect is necessary in order to understand inducer operation characteristic in cryogenic working medium.In this paper, a new cavitation model modified by thermodynamic effect has been deduced based on Rayeigh-Plesset equation.In addition, the model has been compiled as a computer program, which has been used as rocket engine inducer numerical simulation.The model has been improved applicable by comparing simulation and engine trial run results.
参考文献/References:
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备注/Memo
收稿日期:2018-08-12; 修回日期:2018-10-30作者简介:李龙贤(1987—),男,博士,研究领域为液体火箭发动机涡轮泵设计、数值计算和试验
更新日期/Last Update:
2019-10-25