摘要
介绍了正排量泵喷水推进器的组成及其推进原理,比较了正排量泵喷水和负排量泵喷水的优缺点;在传统喷水推进理论基础上,引入动量/动能修正系数、边界层对来流动量的影响系数及泵吸收来流动量系数,对正排量泵喷水能量转换过程及推进理论如推进推力及效率等进行了详细研究;分析了推进推力及效率与各系数之间的关系。研究结果为设计高性能的正排量泵喷水推进器提供了理论依据。
The composition and work principles of a positive displacement pump（PD pump） WJP were introduced and the comparative analyses were made between the positive and negative displacement pump（ND pump） WJP.Based on the traditional WJP theory,a study of introducing correction coefficients of momentum/kinetic and the impact factors of boundary layer and pump suction was carried out to investigate the energy transformation and the theory of PD pump WJP,such as the calculation of thrust and efficiency.The related conclusions are extended to design high performance PD pump WJP units.
出处
《中国机械工程》
EI
CAS
CSCD
北大核心
2011年第24期2977-2981,共5页
China Mechanical Engineering
基金
国家自然科学基金资助项目(10972086)
山东省自然科学基金资助项目(ZR2011EEQ010)
中央高校基本科研业务费专项资金资助项目(1600-841011027)
关键词
反推力
喷水推进
喷嘴
吸入口
正排量泵
reaction thrust
water jet propulsion（WJP）
nozzle
suction inlet
positive displacement pump
