摘要
本文提出一种梭型潜水器外形方案,利用CFD方法,对潜水器周围粘性流场进行仿真计算,获得了梭型潜水器的阻力特性,并对比分析了型长、型宽和型深变化对潜水器阻力性能的影响规律。计算结果表明,梭型潜水器的摩擦阻力系数比“相当平板”的摩擦阻力系数略大;当去流段长度超过型深的5倍后,粘压阻力系数的变化趋于平缓,型宽和型深对粘压阻力系数的影响变得很小;若要降低梭型潜水器阻力,则应减小进流段长度,并将去流段长度取为型深的3~4倍。
A new hull form of shuttle-shaped underwater vehicle was proposed.Numerical simulation on the viscous flow around the vehicle is processed by solving Reynolds-averaged Navier-Stokes equations with the finite volume method.The calculated results are compared and analyzed to reveal the influence of length,breadth and depth on the resistance of the vehicle.The results show that the frictional resistance coefficient of this shuttle-typed underwater vehicle is slightly larger than that of the equivalent plate.The influences of breadth and depth on viscous pressure resistance coefficient become very small when the ratio between afterbody length with depth larger than 5.In order to reduce the resistance of the vehicle,the length of forebody should be decreased and the range of afterbody length is recommended 3~4 times the depth.
作者
吕晓军
王路才
纪刚
LV Xiao-jun;WANG Lu-cai;JI Gang(College of Naval Architecture and Ocean Engineering,Naval University of Engineering,Wuhan 430033,China;Department of Navigation,Dalian Naval Academy,Dalian 116108,China)
出处
《舰船科学技术》
北大核心
2023年第17期10-14,共5页
Ship Science and Technology
基金
国家部委基金资助项目(DJYJNK2019-008)。
关键词
潜水器
摩擦阻力
粘压阻力
underwater vehicle
frictional resistance
viscous pressure resistance
