桨扇模型的气动性能和气动声学的实验研究  

AN EXPERIMENTAL STUDY OF AERODYNAMIC PERFORMANCE AND AEROACOUSTIC CHARACTERISTICS OF A SERIES OF PROP-FANS

作　　者：王波[1] 任丽芸[1] 彭泽琰[1] 

机构地区：[1]北京航空航天大学

出　　处：《航空动力学报》1994年第1期5-9,共5页Journal of Aerospace Power

摘　　要：概述了具有不同安装角的直叶片、前掠叶片、后掠叶片等３种桨扇模型在起飞状态下出口流场的气动性能和气动声学实验结果及其相互间的对比。主要结论为：良好的气动设计不仅是提高气动性能的要求，而且也是改善桨扇气动声学性能的有效途径；有掠度的叶片具有降噪的潜力；桨扇叶尖区采用卸荷设计有利于降噪及提高效率。Abstract Aerodynamic performance and aero acoustic characteristics of straight (un sweep)、forward sweep and backward sweep blade with different installed angles have been investigated experimentally under the take off condition.From their comparative study the following conclusions have been drawn.(1)An optimal prop fan design should be made by combining both high aerodynamic performace and low aerodynamic noise;(2)Blades with sweep have potentials for noise reduction;(3)Tip load reduction prop fan blade design would be benefit to lowering the noise level as well as to the prop fan efficiency improvement.

关 键 词：桨扇 气动性能 气动声学 

分 类 号：V231.3[航空宇航科学与技术—航空宇航推进理论与工程]