Advanced Concept Studies for Supersonic Commercial Transports Entering Service in 2030-35 (N+3)

Morgenstern, John M.; Norstrud, Nicole; Stelmack, Marc A.; Jha, Pratik

doi:10.2514/6.2010-5114

Cited by 70 publications

(85 citation statements)

References 2 publications

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“…Jet flows interacting with these nearby surfaces result in complex scattered acoustic fields that are difficult to model. Supersonic aircraft configurations, such as those developed by Welge et al 3,4 for the 2020 to 2035 timeframe or by Morgenstern et al 5 for the 2035 timeframe and beyond, demonstrate complicated nozzle and engine placement designed to reduce sonic boom and jet noise. Advanced low bypass ratio engines, as shown by Sokhey and Kube-McDowell, 6 can be integrated into the airframe while potentially reducing jet noise.…”

Section: Introductionmentioning

confidence: 99%

The Effects of Surfaces on the Aerodynamics and Acoustics of Jet Flows

Smith

Miller

2013

19th AIAA/CEAS Aeroacoustics Conference

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Section: Introductionmentioning

confidence: 99%

The Effects of Surfaces on the Aerodynamics and Acoustics of Jet Flows

Smith

Miller

2013

19th AIAA/CEAS Aeroacoustics Conference

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“…The model is placed in a wind tunnel with freestream Mach number of 1.7 at an angle of attack of 0 degree. The Reynolds number based on the freestream velocity is Re = 2.43 × 10 6 [2]. The grid is generated by ICEM CFD and contains 4.57 million hexahedra cells as shown in Fig.…”

Section: B 69 Degree Delta Wing-bodymentioning

confidence: 99%

Shape Optimization of Supersonic Bodies to Reduce Sonic Boom Signature

Wray

Agarwal

2016

34th AIAA Applied Aerodynamics Conference

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This paper describes the numerical simulation and shape optimization of the Lockheed SEEB-ALR and 69 Degree Delta Wing-Body for computing the sonic boom signature in the nearfield and its minimization using a genetic algorithm. For flow field calculation, the commercial CFD flow solver ANSYS Fluent is employed. The near field pressure disturbance is used to determine the strength of the sonic boom signature. The computational results for the two cases are compared with the experimental data. The body shapes are then optimized using a single-objective genetic algorithm. The results show a significant decrease in strength of the sonic boom.

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“…Green carried out studies of BWB and flying wing architectures with unducted fan engines, demonstrating a projected fuel burn per unit payload-range of 50% lower than current passenger aircraft [43]. Similarly NASA have carried out studies of two potential future architectures for the 2030-2035 time period, one defined as a "double-bubble" architecture (the D-8 Series), and the other defined as a "hybrid wing body" architecture (the H-3 Series) [44]. The D-8 demonstrates an reduction in fuel burn of 70%, reduction in noise of 60dB, and a reduction in N O x emissions of 87% relative to today's baseline technology.…”

Section: Literature Reviewmentioning

confidence: 99%

“…The D-8 demonstrates an reduction in fuel burn of 70%, reduction in noise of 60dB, and a reduction in N O x emissions of 87% relative to today's baseline technology. Although there is a clear outline of the technology requirements to reach these performance improvements, there is a gap in how the architecture will evolve from the baseline dominant architecture to this future double-bubble architecture [44]. It is also worth noting that there are considerable obstacles in obtaining airworthiness certification for these architectures, for example the emergency evacuation requirement in the case of the BWB.…”

Section: Literature Reviewmentioning

confidence: 99%

Influence of Technology Trends on Future Aircraft Architecture

Kellari

Crawley

Cameron

2017

Journal of Aircraft

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In the last thirty years aircraft performance has experienced diminishing returns in terms of efficiency, on the order of 1% reduction in fuel consumption annually since 2010. Meanwhile, according to projections by Airbus and Boeing, air passenger traffic is expected to increase 3.5-4.6% per annum. ICAO has recommended that overall energy efficiency be improved by 2% annually. The rate of increase in demand and decrease in fuel consumption, raises the question of how this goal can be met.In this paper, engine technology advances are identified as the most significant contributing trend to aircraft performance. These trends are extrapolated in order to analyze the conditions that could lead to a potential break in the dominant aircraft architecture. A hybrid analytical-empirical model for aircraft optimization is used to predict the effects of these technological trends on aircraft design. Four technology scenarios are used to analyze the expected performance increase and expected year of break in architecture, for existing airframes and unconstrained airframe geometry.It is found that for existing airframes performance is expected to increase by 6-38% * Graduate Student Researcher, System Architecture Lab, Room 33-409, Massachusetts Institute of Technology,

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Advanced Concept Studies for Supersonic Commercial Transports Entering Service in 2030-35 (N+3)

Cited by 70 publications

References 2 publications

The Effects of Surfaces on the Aerodynamics and Acoustics of Jet Flows

The Effects of Surfaces on the Aerodynamics and Acoustics of Jet Flows

Shape Optimization of Supersonic Bodies to Reduce Sonic Boom Signature

Influence of Technology Trends on Future Aircraft Architecture

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