浸没式喷水推进系统水动力特性分析  

Hydrodynamics of submerged waterjet propulsion

作　　者：张恒 汲国瑞 邱继涛 蔡佑林[1,2] ZHANG Heng;JI Guo-rui;QIU Ji-tao;CAI You-lin(Marine Design&Research Institute of China,Shanghai 201100,China;Key Laboratory of Waterjet Propulsion Technology,Shanghai 200011,China)

机构地区：[1]中国船舶及海洋工程设计研究院,上海201100 [2]喷水推进技术重点实验室,上海200011

出　　处：《船舶力学》2025年第1期53-62,共10页Journal of Ship Mechanics

基　　金：国家自然科学基金资助项目(U2341242)。

摘　　要：浸没式喷水推进是常规艉板式喷水推进的一种衍变型式,其流道与船体高度耦合,船泵耦合流场更复杂。针对浸没式喷水推进技术发展需求,首次构建浸没式喷水推进控制体与力学模型,并开展其与常规艉板式的差别分析。然后针对同一型船、同一型推进泵,在设计航速点开展两种推进形式的船泵一体化多自由度运动数值计算分析。对比结果表明:浸没式喷水推进获流区面积更大,流道效率更高,对船体姿态影响小,浸没式喷水推进推力减额分数较大且为正值。Submerged waterjet propulsion is a variant of conventional waterjet propulsion,whose inlet duct is fully integrated into the bottom plate of hull,reulting in a more complex coupled flow field behind.In order to meet the development requirements of submerged waterjet propulsion,the differences in mechanical control system between two types of waterjet propulsion were studied.Numerical simulations were conducted for both conventional and submerged waterjet propulsion at designed speed point.The comparison results show that submerged waterjet propulsion has larger flow obtaining area,higher inlet duct efficiency and less impact on the ship motion while the thrust reduction fraction is larger.

关 键 词：浸没式喷水推进 推力减额 进口流道 CFD 

分 类 号：U664.34[交通运输工程—船舶及航道工程]