摘要
以某V型船尾布置四台喷水推进器的进口流道为研究对象,通过数值模拟方法,计算设计航速工况下的进口流道进流特性以及随进速比的变化规律。研究结果表明,进速比减小,进口流道进流效率增加,但过小的进速比下的出流不均匀度增加。两台内侧推进器进流不仅相互之间会产生影响,还受到外侧推进器的影响,其获流区截面形状相对更窄、更深,而外侧推进器则相对更宽、更浅;外侧推进器的进流受到内侧推进器的影响,其获流区域有明显向外侧偏移的倾向。这一重要结论对V型船四台喷水推进器的布置优化,喷水推进器与船体水动力匹配权衡设计有重要的指导意义。
This paper analyzes the performance and interaction characteristics of four waterjet ducts installed in the stern of a V-type vessel using CFD method. Numerical results show that the stream tube and capture area of the two inner waterjets are narrower and deeper than the outer ones significantly. It is also shown that the efficiency of ducts increased with decrease of inlet velocity ratio（IVR）, however the outflow may advance towards disorder when decreasing the IVR. Research results will provide a reference to the optimization of installing waterjet devices in a ship with V type of stern.
作者
戴原星
王金宝
尹晓辉
刘建国
林辉
DAI Yuanxing;WANG Jinbao;YIN Xiaohui;LIU Jianguo;LIN Hui(Science and Technology on Water Jet Propulsion Laboratory,Shanghai 200011,China;Marin Design ＆Research Institute of China,Shanghai 200011,China)
出处
《中国造船》
EI
CSCD
北大核心
2018年第2期72-79,共8页
Shipbuilding of China
基金
重点实验室基金项目(61422230201162223007)
关键词
喷水推进
进口流道
相互干扰
wateijet propulsion
inlet duct
mutual interference
