曾旺, 李晔, 秦江涛. 混合对转推进系统水动力性征数值研究[J]. 中国舰船研究, 2019, 14(2): 30-35, 62. DOI: 10.19693/j.issn.1673-3185.01022
引用本文: 曾旺, 李晔, 秦江涛. 混合对转推进系统水动力性征数值研究[J]. 中国舰船研究, 2019, 14(2): 30-35, 62. DOI: 10.19693/j.issn.1673-3185.01022
Zeng Wang, Li Ye, Qin Jiangtao. Numerical study on hydrodynamic characteristics of hybrid contra-rotating propeller[J]. Chinese Journal of Ship Research, 2019, 14(2): 30-35, 62. DOI: 10.19693/j.issn.1673-3185.01022
Citation: Zeng Wang, Li Ye, Qin Jiangtao. Numerical study on hydrodynamic characteristics of hybrid contra-rotating propeller[J]. Chinese Journal of Ship Research, 2019, 14(2): 30-35, 62. DOI: 10.19693/j.issn.1673-3185.01022

混合对转推进系统水动力性征数值研究

Numerical study on hydrodynamic characteristics of hybrid contra-rotating propeller

  • 摘要:
      目的  为研究混合对转推进系统的推进性能,
      方法  采用滑移网格方法,分别对螺旋桨、吊舱推进器、混合对转推进系统的水动力性征进行数值模拟,分析混合对转推进系统中各推进成分相对于其单独工作时的水动力性征差异,研究混合对转推进系统中各部分之间的相互影响规律。
      结果  结果表明:在混合对转推进系统中,后桨对前桨的抽吸作用导致前桨推力系数、转矩系数、敞水效率随进速系数的减小而减小,与单独螺旋桨的变化趋势不同;吊舱和桨毂的阻塞效应以及前桨非定常尾流对后桨的干扰作用,导致后桨推力系数、转矩系数及敞水效率与单独吊舱推进器的结果不同;混合对转推进系统效率低于单独螺旋桨,未能体现后桨对前桨尾流的吸能作用,因此在混合对转推进系统的设计研究工作中,需要进一步考虑前、后桨几何参数的匹配问题。
      结论  研究结果可为混合对转推进系统的优化设计和工程应用提供参考。

     

    Abstract:
      Objectives  In order to study the propulsion performance of the hybrid contra-rotating propeller,
      Methods  the hydrodynamic characteristics of the propeller, the podded propeller and the hybrid contra-rotating propeller(CRP) are numerically simulated by using sliding mesh method respectively, the differences in the hydrodynamic characteristics of each propulsion component in the hybrid CRP compared to those of the entire hybrid CRP are analyzed in detail, and the interaction between various parts of the hybrid CRP is studied.
      Results  The results show that the thrusting coefficient, the torque coefficient and the open water efficiency of the forward propeller decrease as the speed coefficient decreases due to the suction effect of the rear propeller on the forward propeller in the hybrid CRP, in which the trend is different from that in the single propeller. The thrusting coefficient, the torque coefficient and the open water efficiency of the rear propeller are different from those of the single podded propeller due to the blocking effect of pod and hub and the interference effect of unsteady wake of the forward propeller on the rear propeller. The calculated efficiency of the hybrid CRP is lower than that of the single propeller, and the energy absorption effect of the rear propeller on the forward propeller wake is not reflected. Therefore, the matching of the geometry parameters of the forward and rear propellers should be further considered in the design and study of the hybrid CRP.
      Conclusions  This study results can provide reference for the optimal design and engineering application of the hybrid CRP.

     

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