上海交通大学学报(自然版) ›› 2013, Vol. 47 ›› Issue (06): 932-937.

• 交通运输 • 上一篇    下一篇

泵喷推进器定常水动力性能数值模拟

潘光1,胡斌1,2,王鹏1,杨智栋1,王一云1   

  1. (1. 西北工业大学 航海学院, 西安 710072; 2. 中国船舶重工集团公司 第705研究所, 西安 710075)
     
  • 收稿日期:2012-07-16

Numerical Simulation of Steady Hydrodynamic Performance of a Pump-jet Propulsor

PAN Guang1,HU Bin1,2,WANG Peng1,YANG Zhidong1,WANG Yiyun1   

  1. (1. College of Marine Engineering, Northwestern Polytechnical University, Xi’an 710072, China;2. The 705th Research Institute, China Shipbuilding Industry Corporation, Xi’an 710075, China)
  • Received:2012-07-16

摘要:

针对装有泵喷推进器的某型水下航行器,建立了内外流场的一体化数值计算模型.基于分块网格技术耦合生成了高质量结构化网格,采用雷诺时均方法(RANS)和剪切应力输运(SST)k-ω湍流模型,并基于有限体积法,进行了定常水动力性能的数值模拟;给出了泵喷推进器的敞水性能曲线,表明泵喷推进器效率较高,且平衡性能较为理想;分析了航行器表面和转定子叶片不同叶高处的压力分布;对转子梢涡进行了形态显示和原理解释;讨论了转子前、转定子之间及定子后不同半径处的速度分量情况;通过与全流道计算结果进行对比,说明了单流道模型对于所研究问题具有适用性及可行性.

 
 

关键词: 泵喷推进器, 水动力性能, 计算流体力学

Abstract:

The numerical model of integrative internal and external flow field of underwater vehicle equipped with a pump-jet propulsor was established. The computational region discretization was conducted  by using high quality multiblock structure grid. The steady hydrodynamic performance was calculated by adopting Reynolds time averaged method, SST k-ω turbulence model and finite volume method. The open water performance curve was given, indicating that the pump-jet propulsor had a high efficiency and ideal balance of performance. Pressure distributions along the meridian of vehicle hull and at various heights of blade were analyzed. The tip vortex of the rotor was displayed and explained. The velocity components were discussed in the location before the rotor, in the middle of the gap and behind the stator. The comparison with the results of the full stage model showed that the single stage model was applicable and feasible for the research.

Key words: pump-jet propulsor, hydrodynamic performance, computational fluid dynamics

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