螺旋桨与毂帽鳍集成一体化优化设计方法研究

摘要

In this article, PBCF and propeller are considered as a whole unit and an integrative design procedure is carried out, in which uploading at blade root is emphasized. Uploading in blade root will generate hub vortex, which can be restrained by PBCF because of its energy saving mechanism. An integrative propeller-PBCF design method is provided. Potential flow theory, CFD tools, artificial intelligence optimization algorithm, and model tests are applied in completion of this design method. Model test data indicate higher efficiency of the propeller-PBCF unit by this design method, and utility, robustness and practicality of the design method is shown.%螺旋桨毂帽鳍能够回收部分螺旋桨旋转尾流能量、消除螺旋桨桨毂后端的低压区，是一种有效的节能装置。论文中，螺旋桨与毂帽鳍作为一个整体进行一体化优化设计，并在设计过程中融入桨叶根部加载的设计思想。桨叶根部适当加载，可均匀螺旋桨径向载荷，减小螺旋桨激励力，并有利于抑制梢涡产生；毂帽鳍可用以消除毂涡，并提供附加推力。论文通过势流理论、粘性 CFD 技术和改进的粒子群优化算法及模型敞水试验来进行设计方法的研究。提出理论设计与数值优化设计相融合的螺旋桨与毂帽鳍一体化优化设计方法。设计方案的模型试验结果表明，设计的螺旋桨与毂帽鳍具有更高的整体推进效率；设计方法是有效、可靠、实用的。