摘要
针对实桨法模拟螺旋桨旋转计算效率低且双桨船尾流场复杂,而螺旋桨体积力法一般不考虑操纵运动下尾流场不均匀性对螺旋桨水动力性能影响的问题,采用RANS方法、重叠网格技术和螺旋桨体积力法,以DTMB5415M为研究对象,进行了双桨船操纵运动数值模拟研究.首先,对DTMB5415M进行了约束模试验数值模拟,以求取操纵运动下螺旋桨的水动力性能,从而建立操纵运动下的螺旋桨修正体积力模型;然后,将该螺旋桨修正体积力模型和原螺旋桨体积力模型分别用于DTMB5415M的操纵运动数值模拟.结果表明:螺旋桨修正体积力模型相比原体积力模型考虑了船尾伴流场不均匀性对真实桨侧向力和推力的影响,可以较准确快速地进行船舶操纵运动数值模拟.
Aiming at the problems that the real-propeller method has low computation efficiency in simulating the rotation of propeller and the complexity of the wake field of the twin-propeller ship,while the body force propeller method usually does not consider the influence of wake non-uniformity on the propeller hydrodynamics performance under the maneuvering motion condition,by using RANS method,overset grid technology and body force propeller method,the DTMB5415M was taken as the research object,and the numerical simulations for a twin-propeller ship maneuvering motion were carried out.First,the captive model test numerical simulations for DTMB5415M were carried out to obtain the hydrodynamic forces of the propeller under the maneuvering motion condition.Thus,the modified body force propeller model under maneuvering motion condition was established.Then,the modified body force propeller model and original body force propeller model were used for the numerical simulations of DTMB5415M maneuvering motion,respectively.Results show that the modified body force propeller model considers the influence of wake non-uniformity on the lateral force and thrust of the real propeller compared with the original body force propeller model,so the numerical simulations for ship maneuvering motion can be carried out more accurately and quickly.
作者
谭康力
谢伟
解学参
刘强
TAN Kangli;XIE Wei;XIE Xueshen;LIU Qiang(China Ship Development Design Center,Wuhan 430064,China)
出处
《华中科技大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2023年第4期62-68,90,共8页
Journal of Huazhong University of Science and Technology(Natural Science Edition)
基金
中央军委科技委国防科技创新特区资助项目(17-H863-05-ZT-002-007-01)。
关键词
双桨船
船舶操纵运动
约束模试验
数值模拟
螺旋桨修正体积力模型
螺旋桨侧向力
twin-propeller ship
ship maneuvering motion
captive model test
numerical simulation
modified body force propellermodel
propeller lateral force
