A Mixed-Fidelity Approach for Design of Low-Boom Supersonic Aircraft

Li, Wu; Shields, Elwood; Geiselhart, Karl

doi:10.2514/6.2010-845

Cited by 17 publications

(3 citation statements)

References 9 publications

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“…The predicted sonic boom ground signatures are compared against existing tools for the sake of validating the current method. The first comparison is for an aircraft concept for which the offbody pressure distribution at three body lengths is obtained from a stretched-grid computational fluid dynamics (CFD) run [15,21] using USM3D [22] and is given in Fig. 3a.…”

Section: Results Validation and Discussionmentioning

confidence: 99%

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Advanced Sonic Boom Prediction Using the Augmented Burgers Equation

Rallabhandi

2011

Journal of Aircraft

156

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This paper presents an approach to predict the sonic boom ground signatures accurately by numerically solving the augmented Burgers equation entirely in the time domain. The method is capable of predicting the shock thicknesses, thus improving the frequency spectrum of the ground signatures. This also improves the loudness calculation when compared with linear theory methods, because the shock rise times are computed and not empirically adjusted or corrected. The method is capable of predicting undertrack and offtrack ground signatures, with or without wind effects, along with consideration for aircraft maneuvers. This method is very efficient and accurate, making it a very useful design tool in the development of supersonic cruise aircraft.

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Section: Results Validation and Discussionmentioning

confidence: 99%

“…1) The first extension is the ability to handle different input waveforms: either an offbody dp=p pressure waveform or an F function generated, perhaps from boom minimization theory or an equivalent area distribution used in design exercises [15].…”

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confidence: 99%

Advanced Sonic Boom Prediction Using the Augmented Burgers Equation

Rallabhandi

2011

Journal of Aircraft

156

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“…The current analysis and design process [4,5] for supersonic concepts at NASA Langley Research Center uses an automated USM3D [6,7] CFD analysis. This automated mesh generation and CFD analysis requires several hours to obtain off-body pressure distributions for a conceptual configuration.…”

Section: Introductionmentioning

confidence: 99%

Integration of Off-Track Sonic Boom Analysis for Supersonic Aircraft Conceptual Design

Ordaz

2014

Journal of Aircraft

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A highly desired capability for aircraft conceptual design is the ability to rapidly and accurately evaluate new concepts to avoid adverse trade decisions that may hinder the development process in the later stages of design. Evaluating the robustness of new low-boom concepts is important for the conceptual design of supersonic aircraft. Here, robustness means that the aircraft configuration has a low-boom ground signature at both under-and off-track locations. An integrated process for under-and off-track sonic boom analysis is developed to facilitate the design of robust low-boom supersonic aircraft. The key enabler for sonic boom analysis is accurate computational fluid dynamics solutions for off-body pressure distributions. To ensure the numerical accuracy of the off-body pressure distributions, a mesh study is performed with Cart3D (an inviscid computational fluid dynamics solver) to determine the mesh requirements for off-body computational fluid dynamics analysis. Comparisons are made between the sonic boom analysis results conducted with the Cart3D and USM3D inviscid computational fluid dynamics solvers. The variation in the ground signature that results from changes in the location of the computational fluid dynamics offbody pressure distribution is also examined. Finally, a complete under-and off-track sonic boom analysis is presented for two distinct supersonic concepts to demonstrate the capability of the integrated analysis process. NomenclatureΔp∕p∞ = nondimensional off-body pressure distribution

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Review and prospect of supersonic business jet design

Sun

Smith

2017

Progress in Aerospace Sciences

106

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This paper reviews the environmental issues and challenges appropriate to the design of supersonic business jets (SSBJs). There has been a renewed, worldwide interest in developing an environmentally friendly, economically viable and technologically feasible supersonic transport aircraft. A historical overview indicates that the SSBJ will be the pioneer for the next generation of supersonic airliners. As a high-end product itself, the SSBJ will likely take a market share in the future. The mission profile appropriate to this vehicle is explored considering the rigorous environmental constraints. Mitigation of the sonic boom and improvements aerodynamic efficiency in flight are the most challenging features of civil supersonic transport. Technical issues and challenges associated with this type of aircraft are identified, and methodologies for the SSBJ design are discussed. Due to the tightly coupled issues, a multidisciplinary design, analysis and optimization environment is regarded as the essential approach to

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A Mixed-Fidelity Approach for Design of Low-Boom Supersonic Aircraft

Cited by 17 publications

References 9 publications

Advanced Sonic Boom Prediction Using the Augmented Burgers Equation

Advanced Sonic Boom Prediction Using the Augmented Burgers Equation

Integration of Off-Track Sonic Boom Analysis for Supersonic Aircraft Conceptual Design

Review and prospect of supersonic business jet design

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