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

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 modifie...

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Bibliographic Details
Published in:Aerospace science and technology Vol. 43; pp. 96 - 110
Main Authors: Dehpanah, Payam, Nejat, Amir
Format: Journal Article
Language:English
Published: Elsevier Masson SAS 01.06.2015
Subjects:
Aerodynamics
Aerospace sciences
Aircraft design
Airframes
Assessments
Blended wing body
Blends
Computational aerodynamics
Future airliners
Missions
Navier-Stokes equations
Passengers
Sequential airframes
Blended wing body
Computational aerodynamics
Aircraft design
Sequential airframes
Future airliners
ISSN:1270-9638, 1626-3219
Online Access:Get full text
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Summary: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.
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ISSN:1270-9638
1626-3219
DOI:10.1016/j.ast.2015.02.015