Sonic Boom and Drag Evaluation of Supersonic Jet Concepts

Aiaa Aviation 2020 Forum

2020

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This paper introduces the E-19 AEOLUS supersonic business jet designed by the authors (conceptual design) and a team of Staff and a team of graduate students (preliminary and detail design) from the Aerospace Vehicle Design MSc. The design is presented at the 50 th anniversary of the first flight of Concorde and with growing interest from many aircraft design companies. An attractive design would still need the usual attributes of safety, security, comfort, reliability, performance and operational flexibility. This paper presents a design that attempts to address these issues. The details of cabin, structures, landing gear, systems, powerplants, etc. are designed. Low-boom low-drag technologies are applied to the design. The synthetic vision display and double drooping nose are introduced to increase the pilot's field of view. The resulting concept is challenging but could result in an aircraft well suited to meet a new market opportunity.

Section: A Brief Review Of the Group Design Projectmentioning

confidence: 99%

Design Case of the E-19 AEOLUS Supersonic Business Jet

Aiaa Aviation 2020 Forum

2020

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“…The sonic boom can be avoided below the cut-off Mach number (around Mach 1.15), however, the time advantage at this Mach number is not evident. Through the previous studies, the authors have established a multidisciplinary methodologies for supersonic transport 24 , validated the design model against different designs 25 , demonstrated the sonic boom can be shaped by tailoring the lift and volume distribution 26 , and proved the feasibility of low-boom and low-drag design optimization 27 . Therefore, all the previous efforts make the design of a low-boom low-drag SSBJ concept possible.…”

Section: Ssbj Design Casementioning

confidence: 99%

Design and operational assessment of a low-boom low-drag supersonic business jet

Proceedings of the Institution of Mechanical Engineers, Part G:

2021

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There has been a worldwide interest to develop a supersonic business jet (SSBJ) for a minimum range of 4000 nm with low sonic boom intensity and high fuel efficiency. An SSBJ design model is developed in the GENUS aircraft conceptual design environment. With the design model, a low-boom low-drag SSBJ concept is designed and optimized. This article studies the design concept for its operational performances. The sustained supersonic cruise flight is studied to find out the fuel-efficient Mach number and altitude combinations. The combined supersonic and subsonic cruise flight scenarios are studied to evaluate the feasibility of boom-free flight routes. The one-stop supersonic cruise flight scenario is studied to compare the fuel consumption and time advantage over subsonic airliners. The off-design sonic boom intensity is studied to explore the operational space assuming there would be a sonic boom intensity limit in the future. Through the studies, it is revealed that there is a corresponding most fuel-efficient operating altitude for a specific cruise Mach number. To operate the aircraft near the cutoff Mach number leads to both increases in the fuel consumption (6.3%–8.1%) and the mission time (11.7%–13.1%). The business-class supersonic transport (231 g/PAX/km) consumes nearly three times fuel as the economic-class supersonic transport (77 g/PAX/km), which is still far more than the economic-class subsonic transport (20 g/PAX/km). Off-design sonic boom intensity studies reveal different trends against the common understanding: the sonic boom intensity does not necessarily decrease as the altitude increases; the sonic boom intensity does not necessarily decrease as the Mach number decreases.

“…Ban et al [7] explore the design space of a supersonic concept, but their study focuses only on the twin-fuselage biplane configuration. This paper reports further research based on the previous supersonic transport studies [8,9]. In this paper, we develop an SSBJ design model in an MDAO environment [10] and explore the design space of low-boom and low-drag SSBJ designs through optimization.…”

Section: Introductionmentioning

confidence: 99%

Low-boom low-drag optimization in a multidisciplinary design analysis optimization environment

Aerospace Science and Technology

2019

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This paper introduces a multidisciplinary design analysis and optimization environment called GENUS. The GENUS aircraft design environment's key features are that it is modular, expandable, flexible, independent, and sustainable. This paper discusses the application of this environment to the design of supersonic business jets (SSBJs). SSBJs are regarded as the pioneers of the next generation of supersonic airliners. Methodologies appropriate to SSBJs are developed in the GENUS environment. The Mach plane cross-sectional area is calculated based on the parametric geometry model. PANAIR is integrated to perform automated aerodynamic analysis. The drag coefficient is corrected by the Harris wave drag calculation and form factor method. The sonic boom intensity is predicted by the wave form parameter method, which is validated by PCBoom. The Cranfield E-5 SSBJ is chosen as a baseline configuration. Low-boom and low-drag optimization are carried out based on this configuration. Through the optimization, the sonic boom intensity is mitigated by 71.36% and the drag decreases by 20.65%.