摘要
将毂帽鳍和导管结合形成复合节能附体,进一步提高导管桨的水动力性能;采用基于诱导速度的面元法预报毂帽鳍式导管桨水动力性能,验证了该方法具有不错的网格无关性,并对比分析了毂帽鳍对导管桨的节能效果;通过与文献结果对比,证明这套程序在中低进速下有较好精度;最后对影响毂帽鳍节能效果的四个参数进行了变参数分析,根据计算结果得到了最佳毂帽鳍参数.结果表明:毂帽鳍螺距角对导管桨的水动力性能影响很小,鳍桨相位角对其有一定的影响;鳍桨间距比和鳍片高度比对节能效果影响较大,并且在合理的范围内鳍桨间距比和鳍片高度比尽可能小,可以进一步提升其节能效果;该研究可为毂帽鳍式导管桨提供一种快速预报方式,并为后续毂帽鳍式导管桨的研究提供数据支撑.
The propeller boss cap fins(PBCF)and duct were combined to form a composite energy saving appendage to further improve the hydrodynamic performance of ducted propeller.The induced velocity surface panel method was used to predict the hydrodynamic performance of ducted propeller with boss cap fins,and its mesh-independent was verified.The energy saving effect of boss cap fins on ducted propeller was compared and analyzed.It was proved that this program had good accuracy at low and medium speed of advance.Finally,the four parameters that affected the energy saving effect of the boss cap fins were analyzed with variable parameters.According to the calculation results,the optimal boss cap fins parameters were obtained.Results show that the pitch angle of the boss cap fins has little influence on the hydrodynamic performance of the ducted paddle,the phase angle of the between fins and propeller has a certain influence on the energy saving effect,and the fins pitch ratio and fin height ratio have a greater influence on the energy saving effect,and the energy saving effect can be further improved as small as possible within a reasonable range.The research can provide a fast forecasting method for ducted propeller with boss cap fins,and can provide ideas and data support for the subsequent research and development of ducted propeller with boss cap fins.
作者
王超
胡益明
孙聪
郑鑫
WANG Chao;HU Yiming;SUN Cong;ZHENG Xin(College of Shipbuilding Engineering,Harbin Engineering University,Harbin 150001,China)
出处
《华中科技大学学报(自然科学版)》
CSCD
北大核心
2024年第12期119-126,共8页
Journal of Huazhong University of Science and Technology(Natural Science Edition)
基金
黑龙江省自然科学基金资助项目(LH2021E042)。
关键词
面元法
导管桨
毂帽鳍
水动力性能
参数优选
surface panel method
ducted propeller
propeller boss cap fins(PBCF)
hydrodynamic performance
parameter optimization
