大型民机翼型变弯度气动特性分析与优化设计

doi:10.7527/S1000-6893.2015.0216

流体力学与飞行力学

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大型民机翼型变弯度气动特性分析与优化设计

梁煜, 单肖文

中国商用飞机有限责任公司北京民用飞机技术研究中心, 北京 102211

收稿日期:2015-02-02 修回日期:2015-08-03 出版日期:2016-03-15 发布日期:2015-12-21
通讯作者: 梁煜,Tel.:010-57808829,E-mail:liangyu@comac.cc E-mail:liangyu@comac.cc
作者简介:梁煜,男,博士,高级工程师。主要研究方向:民机气动设计。Tel:010-57808829,E-mail:liangyu@comac.cc;单肖文,男,博士,研究员。主要研究方向:民机气动设计。Tel:010-57808989,E-mail:shanxiaowen@comac.cc

Aerodynamic analysis and optimization design for variable camber airfoil of civil transport jet

LIANG Yu, SHAN Xiaowen

Beijing Aeronautical Science and Technology Research Institute, COMAC, Beijing 102211, China

Received:2015-02-02 Revised:2015-08-03 Online:2016-03-15 Published:2015-12-21

摘要/Abstract

摘要：

为了提高飞机巡航过程中升力系数、马赫数变化后的气动效率,大型民用运输机开始采用机翼变弯度技术。以典型远程宽体客机翼型为例,研究了翼型后缘变弯度对气动性能与压力分布的影响。利用代理模型建立了不同巡航设计工况下,翼型后缘弯度与气动性能的关系。以此为基础,提出了基于代理模型的大型民机翼型变弯度设计优化方法。算例研究表明,在给定巡航升力系数与马赫数下,该方法可以预测出翼型的最佳弯度,从而改善非设计点气动性能。该方法对大型民机机翼变弯度构型设计工作有一定的工程意义。

关键词: 超临界设计, 翼型, 激波, 运输机设计, 变弯度, 代理模型, 抖振

Abstract:

In order to improve the aerodynamic efficiency with the change of lift coefficient and Mach number, the technology of variable camber wing has been applied to civil transport jet. Taking the airfoil of long-range wide body transport jet as a case study, the effects of variable camber on airfoil's aerodynamic performance and pressure distribution are investigated. By applying surrogate model, the relationships between airfoil camber and aerodynamic performance under different design conditions are built. Furthermore, an airfoil variable camber optimization method based on surrogate model is proposed. Testing cases show that the optimization method can predict best camber at given lift coefficient and Mach number, result in aerodynamic performance improvement. The proposed method can be applied to variable wing design in civil transport jet engineering.

Key words: supercritical design, airfoil, shock wave, transport aircraft design, variable camber, surrogate model, buffet

中图分类号:

V211

梁煜, 单肖文. 大型民机翼型变弯度气动特性分析与优化设计[J]. 航空学报, 2016, 37(3): 790-798.

LIANG Yu, SHAN Xiaowen. Aerodynamic analysis and optimization design for variable camber airfoil of civil transport jet[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2016, 37(3): 790-798.

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E-mail：hkxb@buaa.edu.cn

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主管单位：中国科学技术协会主办单位：中国航空学会北京航空航天大学

大型民机翼型变弯度气动特性分析与优化设计

Aerodynamic analysis and optimization design for variable camber airfoil of civil transport jet

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