肥大型U尾船舶标称伴流特性SPIV试验研究  

Nominal wake field SPIV measurements of hull with a high block coefficient and U type stern

作　　者：郭春雨[1] 吴铁成[1] 骆婉珍 龚杰[1] Guo Chunyu;Wu Tiecheng;Luo Wanzhen;Gong Jie(College of ShipbuildingEngineering, Harbin EngineeringUniversity, Harbin 150001, China)

机构地区：[1]哈尔滨工程大学船舶工程学院

出　　处：《华中科技大学学报（自然科学版）》2018年第6期71-75,共5页Journal of Huazhong University of Science and Technology(Natural Science Edition)

基　　金：国家自然科学基金资助项目(51379043,51409063);哈尔滨工程大学青年骨干教师支持计划资助项目(HEUCFQ-1408)

摘　　要：应用适用于大型拖曳水池的拖曳水下立体粒子图像测速（SPIV）测量系统,对某肥大型U尾船舶进行了螺旋桨盘面处标称伴流特性试验.基于立体粒子图像测速技术,获得了桨盘面处标称伴流速度场、湍动能和雷诺应力等湍流特征,以及涡量、漩涡结构等漩涡特征.测量结果展现了＂钩状＂伴流场速度分布、舭涡、毂帽涡分布,与尾部相似的U型特征湍动能、雷诺应力等湍流特征分布,以及舭涡、毂帽涡涡量值与涡结构分布,船舶伴流场特性与KVLCC/KVLCC2等U型尾肥大型船舶尾流场特性符合.最后,应用计算流体动力学（CFD）方法对双涡结构生成、传递等演化过程进行了辅助分析,印证了螺旋桨盘面处舭涡、毂帽涡双涡特征的来源;结合CFD涡流演变特征与试验测量结果总结了伴流流动特征,SPIV测量结果清晰展示了肥大型U尾船舶的标称伴流特征.The wake field of a ship model was measured using a stereo towed under water stereo particle image velocimetry（SPIV） system to identify the flow characteristics around a hull with a high block coefficient and U type stern.The time-averaged velocity,vector maps,streamline topology,vorticity contours,and other turbulent quantities were obtained.The＂hook-shaped＂velocity contour,bilge vortex,hub cap vortex,U type characteristics of turbulent kinetic energy and Reynolds stress distribution,vorticity and vortex structure distribution were present in the measurement results.The characteristics of ship wake field in this paper were consistent with the wake characteristics of KVLCC and KVLCC2 with a high block coefficient and U type stern.Finally,the CFD method was used to analyze the evolution process of double vortex structure generation and transmission,and verified the source of bilge vortex and hub cap vortex of propeller plane.Combined with the characteristics of CFD and EFD results,the characteristics of wake flow were summarized.The SPIV measurement results clearly demonstrate the nominal wake characteristics of large ship with U type stern.

关 键 词：立体粒子图像测速 标称伴流场 舭涡 毂帽涡 U型尾 

分 类 号：U661[交通运输工程—船舶及航道工程]