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Development of blended wing body aircraft design

TL;DR: Results, while unexpected, show that while the BWB seems appropriate for ultra high capacity aircr afts and fairs well in the small capacit y sector, there's still place for progr ess concerning the high capacity (450 PAX) long ran ge (transatlantic) BWB.
Abstract: Given the expected more severe limitations by inter national aviation organizations [1, 2], the Blended Wing Body (BWB) appeared as an up and coming aircra ft design being developed around the globe for the past decades. This article focuses on bibliogra phical research about key advantages of the BWB aircraft concept in respect to conventional tube an d wing (TAW) design and about limits and crucial decision-making in the design of such aircrafts. O ur goal with the current paper is to get an insight into the current state of the art on BWB. This, in turn, allowed us to identify BWB's advantages and limitations, to locate the current development cent ers for BWB, to establish cartography of the variou s BWB projects existing worldwide and to devise corre lations or tendencies for critical parameters from the technical specifications of the existing BWB an d TAW designs. In order to do so, we proceeded to inquire scientific databases in order to acquire an d filter data and research concerning the BWB development over the past recent years. A statistic al analysis allowed us to seize the development tendencies of the design both in space and time. Fo llowing this analysis we proceeded to a dissection of the main characteristics pros and cons of the B WB as well as a comparison between the BWB and the TAW design from a weight performance point of view. Results, while unexpected, show that while the BWB seems appropriate for ultra high capacity aircr afts (800+ PAX) and fairs well in the small capacit y sector (100-200 PAX), there's still place for progr ess concerning the high capacity (450 PAX) long ran ge (transatlantic) BWB.
Citations
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Journal ArticleDOI

5 citations


Cites background from "Development of blended wing body ai..."

  • ...Stress reduction (Salazar et al., 2015) is exhibited by a blended wing body....

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Journal ArticleDOI
01 Jun 2021
TL;DR: In this paper, a review sheds light on the traits behind an albatross's aerodynamic efficiency such as dynamic soaring, bell shaped lift distribution and provides insights into its hereditary posed encodings and evolutions.
Abstract: The aerodynamic efficiency of the albatross has always fascinated researchers and the designing of drones mimicking the albatross's aerodynamic traits have been a major area of interest for the aerospace industry. This review sheds light on the traits behind an albatross's aerodynamic efficiency such as dynamic soaring, bell shaped lift distribution and provides insights into its hereditary posed encodings and evolutions. The soaring techniques have been introduced and discussed along with the albatross's morphology and structure which is responsible for its efficiency. In addition, the albatross's navigational and foraging strategies are briefly discussed to provide a better understanding of the effects of atmospheric conditions on the albatross's flight characteristics and the limitations.

2 citations

References
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Journal ArticleDOI
TL;DR: The Boeing Blended-Wing Body (BWB) airplane concept represents a potential breakthrough in subsonic transport efficiency as discussed by the authors, and work began on this concept via a study to demonstrate feasibility and begin development of this new class of airplane.
Abstract: The Boeing Blended-Wing-Body (BWB) airplane concept represents a potential breakthrough in subsonic transport efficiency. Work began on this concept via a study to demonstrate feasibility and begin development of this new class of airplane. In this initial study, 800-passenger BWB and conventional configuration airplanes were sized and compared for a 7000-n mile design range. Both airplanes were based on engine and structural (composite) technology for a 2010 entry into service

641 citations

Journal ArticleDOI
TL;DR: In this article, the effects of spanwise distribution on the aircraft aerodynamic efficiency were studied through an inverse twist design approach, combining both a low fidelity panel method and a high-fidelity Reynolds-averaged Navier-Stokes solution method.

210 citations


"Development of blended wing body ai..." refers background in this paper

  • ...An article that is cited man y times usually constitutes a corner-stone of the subject –Liebeck and Qin’s papers [3, 5] enter in t h s category....

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  • ...Preliminary analysis shows that such a design sho uld allow, for increased lift, lesser stress in the wings and enha nced environmental performance from the extended working surface allowing for less fuel consumption per passenger during a mission [3-5]....

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  • ...However, when an article’s value is substantial we might make exceptions and keep them as relevant such as we did with [3-5] for example....

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Proceedings ArticleDOI
08 Jan 2007
TL;DR: In this paper, the authors present a conceptual design of an aircraft with a calculated noise level of 62 dB at the airport perimeter, which is near the background noise in a well populated area, making the aircraft imperceptible to the human ear on takeoff and landing.
Abstract: The noise goal of the Silent Aircraft Initiative, a collaborative effort between industry, academia and government agencies led by Cambridge University and MIT, demands an airframe design with noise as a prime design variable. This poses a number of design challenges and the necessary design philosophy inherently cuts across multiple disciplines involving aerodynamics, structures, acoustics, mission analysis and operations, and dynamics and control. This paper discusses a novel design methodology synthesizing first principles analysis and high-fidelity simulations, and presents the conceptual design of an aircraft with a calculated noise level of 62 dBA at the airport perimeter. This is near the background noise in a well populated area, making the aircraft imperceptible to the human ear on takeoff and landing. The all-lifting airframe of the conceptual aircraft design also has the potential for a reduced fuel burn of 124 passenger-miles per gallon, a 25% improvement compared to existing commercial aircraft. A key enabling technology in this conceptual design is the aerodynamic shaping of the airframe centerbody which is the main focus of this paper. Design requirements and challenges are identified and the resulting aerodynamic design is discussed in depth. The paper concludes with suggestions for continued research on enabling technologies for quiet commercial aircraft.

129 citations


"Development of blended wing body ai..." refers methods in this paper

  • ...From the BWB perspective, we shall use NASA's BWB-800 [3], Boeing BWB-450 [3], TsAGI's Flying Wing (FW), Integrated Wing Body (IWB) and Lifting Body [4], NASA ERA's Advanced Vehicle Concept [6], ACFA 2020's design [25], Cambridge-MIT's SAX-40 [12, 26], Greener by Design concept [27], MOB BWB [28] and Reist's regional design [18]....

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  • ...From the BWB perspective, we shall use NASA's BWB-800 [3], Boein g BWB-450 [3], TsAGI's Flying Wing (FW), Integrated Wing Body (IWB) and Lifting Body [4], NA SA ERA's Advanced Vehicle Concept [6], ACFA 2020's design [25], Cambridge-MIT's SAX-40 [12, 26] , Greener by Design concept [27], MOB BWB [28] and Reist's regional design [18]....

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Journal ArticleDOI
TL;DR: Primary emphasis is placed on the rationale of selecting FW main design solutions, aerodynamic configuration, structural concept as well as on development and analysis of alternative configurations for meeting FAR-25 standards with respect to airplane operation in emergency situations.

103 citations


"Development of blended wing body ai..." refers background or methods in this paper

  • ...According to dif ferent sources, L/D could vary between 17 and under 25 for a BWB [3, 4, 9] depending on the desig n....

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  • ...However, when an article’s value is substantial we might make exceptions and keep them as relevant such as we did with [3-5] for example....

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  • ...The challenge is to flight in an acceptable inclination for the passengers [4]....

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  • ...From the BWB perspective, we shall use NASA's BWB-800 [3], Boein g BWB-450 [3], TsAGI's Flying Wing (FW), Integrated Wing Body (IWB) and Lifting Body [4], NA SA ERA's Advanced Vehicle Concept [6], ACFA 2020's design [25], Cambridge-MIT's SAX-40 [12, 26] , Greener by Design concept [27], MOB BWB [28] and Reist's regional design [18]....

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  • ...global fuel management, actively reassigning CG positions adequately for safe flight [4]....

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