船海工程
船海工程
선해공정
SHIP & OCEAN ENGINEERING
2015年
2期
71-73,77
,共4页
泵喷水推进器%轴流式%斜流式%高比转速%推力
泵噴水推進器%軸流式%斜流式%高比轉速%推力
빙분수추진기%축류식%사류식%고비전속%추력
water jet propulsion%axial flow impeller%mixed flow impeller%high specific speed%thrust
对比比转速同为ns ＝769的两个轴流式叶轮和斜流式叶轮的水力性能和推进性能，分析其做为泵喷水推进器叶轮的适用性。分析结果表明，就所研究的两个叶轮而言，斜流式叶轮的高效区更宽，当做为泵喷水推进器叶轮使用时，轴流式叶轮的结构更紧凑、最大推力更大、最大推功比也更大。因此轴流式叶轮比斜流式叶轮更适合于用做泵喷水推进器的工作叶轮。
對比比轉速同為ns ＝769的兩箇軸流式葉輪和斜流式葉輪的水力性能和推進性能，分析其做為泵噴水推進器葉輪的適用性。分析結果錶明，就所研究的兩箇葉輪而言，斜流式葉輪的高效區更寬，噹做為泵噴水推進器葉輪使用時，軸流式葉輪的結構更緊湊、最大推力更大、最大推功比也更大。因此軸流式葉輪比斜流式葉輪更適閤于用做泵噴水推進器的工作葉輪。
대비비전속동위ns ＝769적량개축류식협륜화사류식협륜적수력성능화추진성능，분석기주위빙분수추진기협륜적괄용성。분석결과표명，취소연구적량개협륜이언，사류식협륜적고효구경관，당주위빙분수추진기협륜사용시，축류식협륜적결구경긴주、최대추력경대、최대추공비야경대。인차축류식협륜비사류식협륜경괄합우용주빙분수추진기적공작협륜。
An axial flow impeller and a mixed flow impeller with the same specific speed of ns=769 are investigated by comparing their hydraulic characteristics and thrust performance to analyze the suitability for using in a water jet propulsion.The results show that the mixed flow impeller studied here has a wider high efficiency zone.Nevertheless, the axial flow impeller has a more compact configuration, higher maximum thrust and higher maximum thrust-power ratio than the mixed flow one.There-fore, the axial flow impeller is more reasonable to be a part of a water jet propulsion.
