Dr Oliviu Sugar-Gabor's Outputs (5)

Discrete adjoint-based simultaneous analysis and design approach for conceptual aerodynamic optimization (2017)
Journal Article
Sugar-Gabor, O. (2017). Discrete adjoint-based simultaneous analysis and design approach for conceptual aerodynamic optimization. Incas Bulletin, 9(3), 133-147. https://doi.org/10.13111/2066-8201.2017.9.3.11

In this paper, a simultaneous analysis and design method is derived and applied for a non-linear constrained aerodynamic optimization problem. The method is based on the approach of defining a Lagrange functional based on the objective function and t... Read More about Discrete adjoint-based simultaneous analysis and design approach for conceptual aerodynamic optimization.

Morphing wing application on Hydra Technologies UAS-S4 (2017)
Presentation / Conference
Segui, M., Sugar-Gabor, O., Koreanschi, A., & Botez, R. (2017, February). Morphing wing application on Hydra Technologies UAS-S4. Presented at IASTED Modelling, Identification and Control 2017 Conference, Innsbruck, Austria

This paper presents the aerodynamic results of a morphing wing study performed on the UAS S4 Éhecatl from Hydra Technologies. Only the cruise phase of the aircraft was considered (constant altitude and constant speed). The difference, from an aerodyn... Read More about Morphing wing application on Hydra Technologies UAS-S4.

New methodology for longitudinal flight dynamics modelling of the UAS-S4 Ehecatl towards its aerodynamics estimation modelling (2017)
Presentation / Conference
Kuitche, M., Segui, M., Botez, R., Sugar-Gabor, O., & Ghazi, G. (2017, January). New methodology for longitudinal flight dynamics modelling of the UAS-S4 Ehecatl towards its aerodynamics estimation modelling. Presented at AIAA Modeling and Simulation Technologies Conference, AIAA SciTech Forum 2017, Grapevine, Texas, USA

Unmanned Aerial Vehicle modelling has found diverse utilities in both civil and military applications. In order to develop an accurate model of their flight dynamics, it is important to properly estimate their aerodynamics coefficients. For this pu... Read More about New methodology for longitudinal flight dynamics modelling of the UAS-S4 Ehecatl towards its aerodynamics estimation modelling.

Optimization and design of an aircraft’s morphing wing-tip demonstrator for drag reduction at low speed, Part I – Aerodynamic optimization using genetic, bee colony and gradient descent algorithms (2017)
Journal Article
Koreanschi, A., Sugar-Gabor, O., Acotto, J., Brianchon, G., Portier, G., Botez, R., …Mebarki, Y. (2017). Optimization and design of an aircraft’s morphing wing-tip demonstrator for drag reduction at low speed, Part I – Aerodynamic optimization using genetic, bee colony and gradient descent algorithms. Chinese Journal of Aeronautics, 30(1), 149-163. https://doi.org/10.1016/j.cja.2016.12.013

In this paper, an ‘in-house’ genetic algorithm is described and applied to an optimization problem for improving the aerodynamic performances of an aircraft wing tip through upper surface morphing. The algorithm’s performances were studied from the c... Read More about Optimization and design of an aircraft’s morphing wing-tip demonstrator for drag reduction at low speed, Part I – Aerodynamic optimization using genetic, bee colony and gradient descent algorithms.

Optimization and design of an aircraft's morphing wing-tip demonstrator for drag reduction at low speeds, Part II - Experimental validation using Infra-Red transition measurement from Wind Tunnel tests (2017)
Journal Article
Koreanschi, A., Sugar-Gabor, O., Acotto, J., Brianchon, G., Portier, G., Botez, R., …Mebarki, Y. (2017). Optimization and design of an aircraft's morphing wing-tip demonstrator for drag reduction at low speeds, Part II - Experimental validation using Infra-Red transition measurement from Wind Tunnel tests. Chinese Journal of Aeronautics, 30(1), 164-174. https://doi.org/10.1016/j.cja.2016.12.018

In the present paper, an ‘in-house’ genetic algorithm was numerically and experimentally validated. The genetic algorithm was applied to an optimization problem for improving the aerodynamic performances of an aircraft wing tip through upper surface... Read More about Optimization and design of an aircraft's morphing wing-tip demonstrator for drag reduction at low speeds, Part II - Experimental validation using Infra-Red transition measurement from Wind Tunnel tests.