摘要
多船编队航行是目前发展十分迅速的一种船舶航行方式,合理设置编队的布置形式可降低能耗和提高船舶续航力。论文围绕多船编队的编组形式及其静水阻力性能进行分析,采用VOF方法捕捉自由液面,选取标准的k-ε湍流模型封闭RANS方程,针对单船阻力开展数值仿真并对网格与时间步长进行独立性分析,将仿真结果与试验结果进行比较,验证了数值方法的可靠性。在单船仿真结果的基础上,计算了3船分别呈纵向和三角形编队时的阻力特性,通过3船编队航行的流场特性分析揭示了船-船之间的兴波与尾流干扰对编队阻力的影响规律。结果表明,纵向编队时合理利用上游船舶的低速尾流和产生的有利兴波干扰可以减少编队船舶的阻力,而三角形编队可合理利用中船与侧向船舶之间的有利兴波干扰减少侧船阻力。
Multiple ship formation can reduce energy consumption and improve ship endurance,so it is of great significance to conduct researches on the resistance performance of multiple ship formations.In this paper,numerical simulations are carried out on the multiple ship formations at different longitudinal spacing and different speed.The VOF method is used to capture the free surface.The standard k-εmodel is selected for the closure of RANS equations.Numerical prediction of resistance for single ship is carried out at different speed.The grid independence and time step independence are verified and the numerical results of the resistance have great agreement with the experimental data.Based on the results of the single ship,the resistance characteristics of three ships in longitudinal formation and triangle formation are calculated.The influence of wave interference between ships on the resistance of formation is revealed by analyzing the flow field characteristics of three ships in formation.The results show that resistance reduction can be achieved by reasonable setting the ship spacings.
作者
邹燕林
李鹏飞
蔡子超
姚朝帮
冯大奎
ZOU Yanlin;LI Pengfei;CAI Zichao;YAO Chaobang;FENG Dakui(School of Naval Architecture and Ocean Engineering,Huazhong University of Science and Technology,Wuhan 430074,China;Hubei Key Laboratory of Hydrodynamics of Ships and Marine Engineering,Wuhan 430074,China)
出处
《中国造船》
EI
CSCD
北大核心
2024年第1期237-248,共12页
Shipbuilding of China
关键词
编队航行
减阻
船舶尾流
兴波干扰
sailing in formation
drag reduction
ship wake
wave interference
