In order to reduce the environmental impact and to enhance the aerodynamic performances of an aircraft, the “morphing wing” is a promising way of improvement for the development of green aircraft technologies. However, in order to obtain the best results and thereby justify the costs invested in research and industrialisation it’s important to be sure that the best method possible is used.
In this thesis a study is done, and a program is developed to obtain the best optimization routine of a wing airfoil. In order to do it, two aspects are examined, on one hand, the parameterization method of the airfoil is analyzed. It is a crucial step of the optimization because it is at the basis of every further calculation. Therefore, results obtained by two popular and effective methods are compared, the Non-Uniform Rational Basis Splines (Piegl & Tiller) and the Class/Shape Transformation (Ceze et al.) methods.
To run the optimization itself, two algorithms are compared, the ABC algorithm and the PSO algorithm, in the same test conditions, to determine which one gives the best results and to obtain optimized airfoils.
The S45 Balaam’s wing airfoil is used to perform those optimization routines. The aerodynamic solver XFoil is used to determine the aerodynamic coefficients on the initial and optimized airfoils, and the optimized airfoils coordinates are obtained.
| Date | 23 Mar 2020 |
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| Original language | French |
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| Awarding Institution | - École de technologie supérieure
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| Supervisor | Ruxandra Botez (Supervisor) |
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Verdier, F. (Author),
Botez (Supervisor),
23 Mar 2020Student thesis: Master's thesis › Master in Engineering: Engineering