Physics-based numerical simulation of AUV docking by self-propulsion

被引：0
|
作者：
Wu L. [1 ,2 ]
Wang S. [1 ]
Feng X. [2 ]
Li Y. [2 ]
Liu K. [2 ]
机构：
[1] College of Shipbuilding and Ocean Engineering, Dalian Maritime University, Dalian
[2] State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang
来源：
Wu, Lihong (wlh@sia.cn) | 1600年 / Beijing University of Aeronautics and Astronautics (BUAA)卷 / 46期
关键词：
Autonomous underwater vehicle (AUV); Dynamic mesh; Physics-based numerical simulation; Self-propulsion; Underwater docking;
D O I：
10.13700/j.bh.1001-5965.2019.0305
中图分类号：
学科分类号：
摘要：
To predict the effect of dock on hydrodynamic performance of autonomous underwater vehicle (AUV) and to improve AUV underwater docking success rate, a method of multi-block hybrid grids combined with dynamic layer method and user defined function (UDF) was presented, which was applied to the physics-based numerical simulation of AUV underwater docking by self-propulsion with a discretized propeller. In this method, subdomain-moving substitutes for boundary-moving used in traditional dynamic mesh, which could improve the calculation efficiency. After the numerical validation of the velocity history of AUV self-propulsion against the experimental results, the hydrodynamic performance and flow field of AUV underwater docking were investigated. The results demonstrate that the time of AUV underwater docking from rest by a constant rotating propeller of 300 r/min is about 16 s. The end velocity reaches 0.75 m/s, which meets the demand for collision. The effect of the dock on AUV locates on the neck point B. There is a drag on AUV before B, followed by a suction after B. The increment of resistance is small with a value of 2.4%. Therefore, it is achievable for AUV docking with the dock. © 2020, Editorial Board of JBUAA. All right reserved.
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页码：683 / 690
页数：7
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