新型叶剖面设计及叶剖面参数对空泡特性影响的研究--(1)新型叶剖面设计

本文是新型叶剖面设计及叶剖面参数时空泡特性影响的研究的第一部分：新型叶剖面设计。基于Eppler的机翼叶剖面设计理论给出了一种新的螺旋桨叶剖面设计方法。新的设计方法是利用预先给定拱度和厚度分布而不是攻角分布来设计叶剖面，从而在叶剖面的设计过程中可以控制叶剖面的最大厚度和拱度。这样，新的设计方法可以根据螺旋桨在各个半径上的最大厚度和拱度及水动力特性的要求设计各个半径上的叶剖面，为系统地研究叶剖面参数对其空泡特性的影响提供了一种有效工具，并为螺旋桨和叶剖面的同步优化设计打下基础。

Study on a New Approach to Blade Section Design and Effects of Its Parameters on Cavitation Characteristics Part I:A New Approach to Blade Section Design

This paper is the first part of the Study on a New Approach to Blade Section Design and Effectsof Its Parameter on Cavitation Characteristics: A New Approach to Blade Section Design, which is based on Eppler's airfoil design theory. The new approach will be not based on the prescribed velocity or angle of attack distributions, but camber and thickness distribution to design propeller blade sections. As a result, the maximumcamber and thickness of blade section can be controlled, during the blade design process, to meet the requirements of strength and lift from propeller design procedure. The new approach can also be used to control thecamber and thickness distributions of blade section, which will provide a new methodology to investigate the effects of blade parameters on its cavitation characteristics.