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The aerodynamic design evaluation of a blended-wing-body configuration

机译：混合机翼构型的空气动力学设计评估

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Inherent aerodynamic potential and environmental benefits of the blended-wing-body configuration make it an appropriate candidate for the future airliners. This article studies an initial scaled blended-wing-body airframe using computational analyses in early conceptual design stage. Then, a modified airframe is developed based on evaluation of the initial airframe. Eventually, a full-scaled high-capacity blended-wing-body configuration is proposed for a long-range mission. In assessment of the initial airframe, its aerodynamic coefficients are obtained for a range of angle of attacks based on Reynolds-Averaged Navier-Stokes simulations. The second airframe is designed using conceptual design approach with a typical mission profile, and it is modified based on evaluation of the first airframe. The sequential aerodynamic investigation of the airframes with emphasizing on geometric parameters facilitates the design methodology at its early stage. In the second airframe, the appropriate space for 800 passengers is provided, and geometric parameters are changed according to the mission profile. The current design philosophy allows utilization of maximum aerodynamic potential for designing a blended-wing-body configuration. (C) 2015 Elsevier Masson SAS. All rights reserved.
机译：混合机翼机身结构固有的空气动力学潜力和环境优势，使其成为未来客机的合适人选。本文在概念设计的早期阶段就通过计算分析研究了初始比例的混合机翼机身。然后，基于对初始机身的评估，开发出改进的机身。最终，提出了一种全尺寸的大容量混合机翼构型用于远程任务。在评估初始机身时，根据雷诺平均Navier-Stokes模拟获得了一系列迎角范围内的空气动力学系数。第二架飞机采用具有典型任务概图的概念设计方法进行设计，并根据第一架飞机的评估进行修改。机身的顺序空气动力学研究着重于几何参数，这有助于早期的设计方法。在第二机身中，提供了适合800名乘客的适当空间，并且根据任务配置文件更改了几何参数。当前的设计理念允许利用最大的空气动力学潜力来设计混合机翼机身构型。 （C）2015 Elsevier Masson SAS。版权所有。

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