长航程AUV螺旋桨的数值设计及试航验证  

Numerical Design and Validation of Propeller for Long-range AUV

作　　者：张若初 董小倩[1] 王振宇[2] 黄琰[2] 俞建成 杨晨俊[1] ZHANG Ruochu;DONG Xiaoqian;WANG Zhenyu;HUANG Yan;YU Jiancheng;YANG Chenjun(State Key Laboratory of Ocean Engineering,Shanghai Jiao Tong University,Shanghai,200240,China;State Key Laboratory of Robotics,Shenyang Institute of Automation,Institute for Robotics and Intelligent Manufacturing,Chinese Academy of Sciences,Shenyang 110016,China)

机构地区：[1]上海交通大学海洋工程国家重点实验室,上海200240 [2]中国科学院机器人与智能制造创新研究院沈阳自动化研究所机器人学国家重点实验室,沈阳110016

出　　处：《中国造船》2019年第1期141-153,共13页Shipbuilding of China

基　　金：国家重点研发项目(2017YFCO305800)

摘　　要：基于RANS计算,开展长航程AUV螺旋桨的数值设计。该AUV设计航速仅2kn,要求阻力预报具有较高的精度;为此,各个方向的网格按相同尺度减小比率,设计了三套结构化网格,对阻力计算结果进行了数值不确定度分析。基于自航和敞水模拟,分析得到了实效伴流分布;应用升力线方法设计了适伴流最佳环量螺旋桨,采用螺旋桨进行了RANS自航模拟,预报了AUV的功率-转速-航速关系,并与湖试结果进行了初步比较,结果表明该方法具有良好的精度。Based on RANS simulation, a numerical methodology of propeller design is developed for low-speed and long-range AUVs. As design speed of the AUV under consideration is only 2 knots, high accuracy of resistance prediction is required. Numerical uncertainty in resistance simulation is analyzed based on three sets of structured grids having a unified refinement ratio of the grid. Effective wake profile is predicted via self-propulsion and open-water simulation, where the propeller is simulated with a body-force model. An optimal propeller in non-uniform effective wake is designed by means of the lifting-line theory. The delivered power and rotational speed of the propeller are predicted via unsteady RANS simulation of self-propulsion. A comparison of the RANS-prediction with the trial test indicates that the present numerical methodology is effective and reasonably accurate for design of the propeller on the low-speed AUV and prediction of the powering performance.

关 键 词：AUV 螺旋桨 体积力 实效伴流 RANS 不确定度分析 

分 类 号：U661.313[交通运输工程—船舶及航道工程]