| 翼吊发动机短舱对增升装置气动特性影响研究 |
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| 引用本文： | 邱亚松,白俊强,黄琳,朱军.翼吊发动机短舱对增升装置气动特性影响研究[J].航空计算技术,2010,40(6):86-89. |
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| 作者姓名： | 邱亚松 白俊强 黄琳 朱军 |
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| 作者单位： | 西北工业大学航空学院,陕西西安710072 |
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| 摘 要： | 增升装置的气动效率对于全机整体性能有重要影响,而当代大多数跨音速运输类飞机均采用翼吊发动机布局。通过对有、无翼吊短舱的两个三维增升装置的数值模拟,研究了翼吊发动机短舱对于增升装置气动性能的影响。结果表明,翼吊发动机短舱会严重恶化增升装置的气动性能。流动机理分析表明,短舱挂架与机翼前缘结合处的缝翼缺口及大迎角时绕过短舱的分离气流是造成增升装置气动性能恶化的两个主要原因。
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| 关 键 词： | 翼吊短舱 三维增升装置 流动滞止 数值模拟 |
Study on Influence of Wing-mounted Engine Nacelle on Aerodynamic Performance of High-Lift System |
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| QIU Ya-song,BAI Jun-qiang,HUANG Lin,ZHU Jun.Study on Influence of Wing-mounted Engine Nacelle on Aerodynamic Performance of High-Lift System[J].Aeronautical Computer Technique,2010,40(6):86-89. |
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| Authors: | QIU Ya-song BAI Jun-qiang HUANG Lin ZHU Jun |
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| Institution: | (School of Aeronautics,Northwestern Polytechnical University,Xi′an 710072,China) |
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| Abstract: | The aerodynamic efficient of high-lift system has a sufficient impact on the performance of a plane.And most transonic transport airplanes are wing-mounted engine configurations.This paper investigated the Influence of wing-mounted engine nacelle on aerodynamic performance of high-lift system by numerical simulations about two three-dimensional high-lift systems,one has a wing-mounted engine nacelle and the other doesn′t.The result indicated that wing-mounted engine has serious negative influence on the aerodynamic performance of three-dimensional high-lift system.According to flow mechanism analysis,this paper concluded that slat cut-out and separation flows around nacelle at high angles of attack are the two main reasons that hurt aerodynamic performance of high-lift system. |
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| Keywords: | wing-mounted engine nacelle three-dimensional high-lift system flow stagnation numerical simulation |
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