Journal of South China University of Technology (Natural Science Edition) ›› 2010, Vol. 38 ›› Issue (7): 90-96.doi: 10.3969/j.issn.1000-565X.2010.07.016

• Traffic & Transportation Engineering • Previous Articles     Next Articles

Numerical Simulation of Hydrodynamic Characteristics of Ducted Propeller in Turning Motion

Wu Jia-ming1  Deng Wei1  Lai Hua-wei2   

  1. 1. School of Civil Engineering and Transportation,South China University of Technology,Guangzhou 510640,Guangdong,China; 2. Guangdong Nansha Waterway Bureau,Guangzhou 511475,Guangdong,China
  • Received:2009-12-07 Revised:2010-04-22 Online:2010-07-25 Published:2010-07-25
  • Contact: 吴家鸣（1957-）,男,教授,博士,主要从事船舶与海洋工程水动力学研究. E-mail:ctjmwu@scut.edu.cn
  • About author:吴家鸣（1957-）,男,教授,博士,主要从事船舶与海洋工程水动力学研究.
  • Supported by:

    国家自然科学基金资助项目（10772068）

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Abstract:

In this paper,first,the sliding mesh technology and the computational fluid dynamics （ CFD） technology are both applied to solve the Navier-Stokes equations of a ducted propeller which governs the fluid motion around the duct. Then,the thrust characteristics of the ducted propeller in the flow field of an underwater robot in turning motion are simulated,and the hydrodynamic phenomenon of the propeller in such a condition is observed. The results indicate that,when the flow comes from the robot stern,the thrust coefficient of the stern propeller is lower while that of the side propeller is higher than that without robot,that the flow from the robot frontage may result in an opposite case,and that the robot has no obvious effect on the thrust coefficient when the direction of incoming flow is approximately perpendicular to the axis of the robot.

Key words: ducted propeller, underwater robot, computational fluid dynamics, hydrodynamics, turning motion, numerical simulation