火箭推进2018，Vol.44Issue(3)：76-80,86,6.
某发动机并联贮箱排放均衡性研究
Research on equalizing discharge of parallel tank for a liquid rocket engine
摘要
Abstract
Two parallel tanks are arranged to supply propellant simultaneously in a liquid rocket en-gine, but the propellant discharge is not balanced. It is associated with the flow resistance of the engine pipeline, the thruster working performance and the structural layout of the engine. In order to obtain the dominate factors affecting the discharge balance of the engine system and provide the measure for elimina-ting the unequal discharge of the parallel tank, an analysis model and a testing system were established to verify the influence of these above factors through the computational analysis and test. The results show that the pipeline flow resistance and the structural layout of the engine are the main factors, while the in-fluence of the thruster working performance is very small. Accordingly, the feasible improvement meas-ures are achieved to control the pipeline flow resistance and optimize the structural layout of the engine.关键词
液体发动机/均衡排放/并联贮箱/分析模型/改进措施Key words
liquid rocket engine/equalizing discharge/parallel-tank/analysis model/improve-ment measure分类
航空航天引用本文复制引用
李纯飞,龙春伟,董苑..某发动机并联贮箱排放均衡性研究[J].火箭推进,2018,44(3):76-80,86,6.基金项目
国家863项目(2015AA7060210) （2015AA7060210）
