基于CFD的直翼推进器水动力性能研究及参数影响分析

Hydrodynamic performance research and parameter effect analysis for cycloidal propellers based on CFD

本文在直翼推进器工作原理分析的基础上,以某型直翼推进器的缩比试验模型为研究对象,利用CFD方法进行了建模与仿真,对该型直翼推进器流场特性、敞水性能、桨叶载荷等水动力特性进行了研究,并对不同桨叶结构参数对推进性能的影响进行了比较分析,可为直翼推进器水动力性能预报、桨叶及推进器机构设计与优化提供有效支持。

The hydrodynamic performance is the key to the design of a cycloidal propeller.In the research,aimed at the reduced-scale model of a cycloidal propeller,the numerical modeling and simulation are con⁃ducted by means of computational fluid dynamics(CFD)method,based on which,the hydrodynamic perfor⁃mances including flow field characteristics,open water characteristics,and hydrodynamic loads of propeller blades are analyzed,and the influences of the structural parameters of the blades on the hydrodynamic perfor⁃mances are proposed.The results of the research can provide effective supports for hydrodynamic perfor⁃mance prediction of the cycloidal propellers,and for structural design and optimization of the blades and pro⁃pellers.