关于前掠翼诱导阻力特性的分析  

Analysis on induced drag characteristics of forward swept wings

作　　者：叶正寅[1,2] 周欣欣 叶赋晨 YE Zhengyin;ZHOU Xinxin;YE Fuchen(School of Aeronautics,Northwestern Polytechnical University,Xi’an 710072,China;National Key Laboratory of Aircraft Configuration Design,Xi’an 710072,China;China Academy of Aerospace Aerodynamics,Beijing 100086,China)

机构地区：[1]西北工业大学航空学院,西安710072 [2]飞行器基础布局全国重点实验室,西安710072 [3]中国航天空气动力研究院,北京100086

出　　处：《航空工程进展》2024年第6期150-157,共8页Advances in Aeronautical Science and Engineering

基　　金：国家自然科学基金(12072281)。

摘　　要：前掠翼是飞行器布局的形式之一,关于前掠翼诱导阻力气动特性问题,已有的文献中给出了让人产生混淆的认识。为了澄清关于前掠翼诱导阻力问题的概念,分别采用非线性升力面、升力线和高精度求解欧拉方程的方法计算和分析前掠翼诱导阻力特性,与对应的后掠翼、直机翼进行对比,并对前掠翼的优点进行简要梳理。结果表明:前掠翼诱导阻力比后掠翼小的认知是存在问题的,即使在势流理论的框架下,前掠翼的诱导阻力也比后掠翼大。Forward swept wing is one of the plane forms of aircraft configuaration.For aerodynamic characteristics of induced drag of forward swept wings,the existing papers have provided confusing understandings.In order to clarify the mechanism of induced drag of forward swept wings,the induced drag characteristics are calculated and analyzed for different wing plane forms.The forward swept wings,aft-swept wings and straight wings are considered and compared with nonlinear vortex lattice method,lifting-line theory,and high-order Euler equations numerical methods.The advantages of forward swept wings are also briefly summarized.The results show that conventional perception that the induced drag of forward swept wings is smaller than that of aft-swept wings is a misunderstanding.Even within the framework of potential flow theory and based on numerical results with Navier-Stokes equations,the induced drag of forward swept wings is greater than that of aft-swept wings.

关 键 词：前掠翼 诱导阻力 势流理论 升力面理论 数值模拟 

分 类 号：V221.3[航空宇航科学与技术—飞行器设计]