| 涵道螺旋桨式反扭矩系统气动特性工程计算方法研究 |
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| 引用本文： | 孙传伟.涵道螺旋桨式反扭矩系统气动特性工程计算方法研究[J].直升机技术,2008(3):35-40. |
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| 作者姓名： | 孙传伟 |
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| 作者单位： | 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 |
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| 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BeU X-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.
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| 关 键 词： | 涵道 螺旋桨 气动 兰金体 涡流 源一汇 |
An Engineering-Oriented Method for a Ducted Propeller Aerodynamics Analysis |
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| Authors: | SHU Chuan-wei |
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| Institution: | SHU Chuan-wei(Natinal key Laboratary of Rotorcraft Aermeohauies,Nanjing University of Aeronautics , Astronautics,Nanjing,210016) |
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| Abstract: | 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. |
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| Keywords: | ducted propeller aerodynamics rankie vortex source-sink |
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