Advanced Optimization Approach for Supersonic Low-Boom Design

Minelli, Andrea; Din, Itham Salah El; Carrier, Gérald

doi:10.2514/6.2012-2168

Cited by 6 publications

(4 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Back to the sonic-boom minimization problem, using the change of variable P (t, x) = u(t, −x), we construct theoretically and numerically the set of near-pressure disturbances P 0 leading to ground bound signature P T optimized for minimum pressure rise. Among this set, a selection of admissible P 0 could be imposed to ensure feasible aircraft design (for instance aerodynamic lift) [3, Section 3.3], [22], [25].…”

Section: Simulationsmentioning

confidence: 99%

Initial Data Identification for the One-Dimensional Burgers Equation

Liard

Zuazua²

2022

IEEE Trans. Automat. Contr.

View full text Add to dashboard Cite

In this paper, we study the problem of identification for the one-dimensional Burgers equation. This problem consists in identifying the set of initial data evolving to a given target at a final time. Due to the property of non-backward uniqueness of Burgers equation, there may exist multiple initial data leading to the same given target. In [12], [16], the authors fully characterize the set of initial data leading to a given target using the classical Lax-Hopf formula. In this note, an alternative proof based only on generalized backward characteristics is given. This leads to the hope of investigate systems of conservation laws in one dimension where the classical Lax-Hopf formula doesn't hold anymore. Moreover, numerical illustrations are presented using as a target, a function optimized for minimum pressure rise in the context of sonic-boom minimization problems. All of initial data leading to this given target are constructed using a wave-front tracking algorithm.

show abstract

Section: Simulationsmentioning

confidence: 99%

Initial Data Identification for the One-Dimensional Burgers Equation

Liard

Zuazua²

2022

IEEE Trans. Automat. Contr.

View full text Add to dashboard Cite

show abstract

“…Ω onargarriak diren eremu hurbileko sinaduren multzoa da (adibidez, hegazkinaren geometriak ezarritako diseinu-aldagaiek definiturikoa [5,7]). …”

Section: Alejandro Pozo Pazosunclassified

Zenbakizko biskositateak eragindako soinu-eztandaren simulazioaren zailtasunak

Pozo¹

2018

EKAIA

View full text Add to dashboard Cite

Laburpena:Hegazkin supersonikoek eragindako soinu-eztandaren hedapena eremu hurbiletik lurreraino zehatz-mehatz simulatzea ez da erraza. Ereduaren denbora-tarte handietarako propietateak babesten dituzten zenbakizko metodoak behar dira. Artikulu honetan, soinu-eztandaren minimizazioarekin erlazionaturik dagoen optimizazio eta alderantzizko diseinu-problema ikertu dugu. Bereziki, bere soluzioaren hurbilketen eraginkortasuna mantentzeko gakoak ematen ditugu.Hitz gakoak: Soinu-eztanda, denbora-tarte handiko portaera, biskositatea, zenbakizko metodoak. Abstract:Simulating the propagation of the sonic-boom precisely from the near-field of a supersonic airplane down to the ground level is not easy. It requires numerical schemes that preserve the large-time properties of the model. In this article we deal with an optimization and inverse design problem related to the sonic-boom minimization. In particular, we emphasize the key points that need to be handled in order to keep the efficiency of the approximations of its solution.

show abstract

“…REMENDOUS advances in research related to low-boom supersonic configurations have been made in the past few years. References after 2010 include validation of CFD methods for computing off-body pressure distributions 1-10 by using novel wind tunnel measurement techniques, [11][12][13][14][15][16][17] new methods for design of low-boom supersonic configurations, [18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35][36][37] and development of low-boom supersonic concepts that include nacelles and some mission constraints. [28][29][30][31][32][33][34][35][36][37][38][39][40][41] One of the remaining technical challenges in development of low-boom supersonic concepts is the difficulty of knowing when to continue work on the current configuration layout for a trimmed low-boom design and when to move on with a more promising concept.…”

Section: Introductionmentioning

confidence: 99%

Feasibility of Supersonic Aircraft Concepts for Low-Boom and Flight Trim Constraints

2015

33rd AIAA Applied Aerodynamics Conference

View full text Add to dashboard Cite

This paper documents a process for analyzing whether a particular supersonic aircraft configuration layout and a given cruise condition are feasible to achieve a trimmed lowboom design. This process was motivated by the need to know whether a particular configuration at a given cruise condition could be reshaped to satisfy both low-boom and flight trim constraints. Without such a process, much effort could be wasted on shaping a configuration layout at a cruise condition that could never satisfy both low-boom and flight trim constraints simultaneously. The process helps to exclude infeasible configuration layouts with minimum effort and allows a designer to develop trimmed low-boom concepts more effectively. A notional low-boom supersonic demonstrator concept is used to illustrate the analysis/design process.

show abstract

Advanced Optimization Approach for Supersonic Low-Boom Design

Cited by 6 publications

References 7 publications

Initial Data Identification for the One-Dimensional Burgers Equation

Initial Data Identification for the One-Dimensional Burgers Equation

Zenbakizko biskositateak eragindako soinu-eztandaren simulazioaren zailtasunak

Feasibility of Supersonic Aircraft Concepts for Low-Boom and Flight Trim Constraints

Contact Info

Product

Resources

About