The invention provides a method for installing an energy-saving pre-rotating guide vane in front of a marine propeller, and relates to the technical field of propeller energy-saving guide vane installing.The method comprises the steps that data collection is conducted, specifically, pod propeller flow field data is collected; calculating the circumferential distribution position of the guide vane; and calculating the radial angle of the guide vane installation. According to the method, the defects of the background technology can be effectively improved and overcome, firstly, the pre-rotating guide vanes are arranged according to a certain circumferential angle, the influence of the vanes on the axial speed field in front of the propeller is small, and in other words, the propeller design can be well matched with the flow field behind the ship after the guide vanes are additionally installed; secondly, due to the fact that the blades are short and thin, the wet surface area in contact with water is small, and generated resistance is small; and finally, the energy-saving guide vane in front of the propeller mainly utilizes the characteristics of a tangential velocity field and is matched with an inflow triangle of the propeller to carry out customized design, the thin, few and short blades reduce the influence on resistance increase and the axial velocity field, and meanwhile, the propelling efficiency can be greatly improved.
本申请提供了一种船用桨前节能预旋导叶安装方法,涉及螺旋桨节能导叶安装技术领域,所述方法包括:数据采集:采集吊舱螺旋桨流场数据;计算导叶周向分布位置:计算导叶安装的径向角度。本发明所提方法可以有效改进和解决背景技术缺点,首先,预旋导叶按照一定的周向角排列,其叶片对桨前的轴向速度场影响较小,即螺旋桨设计可以较好匹配加装导叶后的船后流场;其次,由于叶片较短、较薄,与水接触的湿表面积小,产生的阻力较小;最后,桨前节能导叶主要利用切向速度场的特性,配合螺旋桨的进流三角形,进行定制化设计,较薄、较少、较短的叶片降低对增阻、轴向速度场的影响,同时能较大的提升推进效率。
Method for installing energy-saving pre-rotating guide vane in front of marine propeller
一种船用桨前节能预旋导叶安装方法
2025-04-11
Patent
Electronic Resource
Chinese
IPC: | B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS |
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