涵道螺旋桨式反扭矩系统气动特性工程计算方法研究  

An Engineering-Oriented Method for a Ducted Propeller Aerodynamics Analysis

作　　者：孙传伟[1] 

机构地区：[1]南京航空航天大学直升机旋翼动力学国家级重点实验室,南京210016

出　　处：《直升机技术》2008年第3期35-40,共6页Helicopter Technique

摘　　要：分别采用涡流理论、面元—薄翼型和源—汇模型的组合建模方法建立了包括螺旋桨、涵道体和中心体模型在内的反扭矩系统气动特性分析程序,并分别以BellX-22涵道螺旋桨及Doak涵道螺旋桨系统为算例,计算和分析了轴流和斜流情况下、在不同前进比时,涵道螺旋桨系统的气动特性,并得到了涵道体内外表面压力分布规律。Based on the vortex theory and thin airfoil method,an engineering-oriented method for the ducted-propeller anti-torque system was investigated,included the airfoil shaped ducted body,propeller and the central body modelling technology.With examples of Bell X-22 and a Doak full size ducted propeller model,the aerodynamic performance at any angle of attack and advance ratios were caculated,and also with the pressure distribution on the surface of the ducted body.

关 键 词：涵道 螺旋桨 气动 兰金体 涡流 源一汇 

分 类 号：V211.24[航空宇航科学与技术—航空宇航推进理论与工程]