Design and simulation of a multi-profile formula SAE rear wing with active aerodynamics and surface texturing
In this project, a Formula Student rear wing is designed in CATIA V5, and its performance is tested aerodynamically through CFD simulations using Siemens Star CCM+. This design is meant to be a concept for a formula student car. First, important design aspects like the number of elements of the wing...
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| Formato: | tesis de maestría |
| Fecha de publicación: | 2024 |
| País: | España |
| Recursos: | Universitat Politècnica de Catalunya (UPC) |
| Repositorio: | UPCommons. Portal del coneixement obert de la UPC |
| Idioma: | inglés |
| OAI Identifier: | oai:upcommons.upc.edu:2117/422837 |
| Acesso em linha: | https://hdl.handle.net/2117/422837 |
| Access Level: | acceso abierto |
| Palavra-chave: | Computational fluid dynamics Formula One automobiles--Design and construction Dinàmica de fluids computacional Fórmula 1 (Automòbils)--Disseny i construcció CampusLab Àrees temàtiques de la UPC::Enginyeria mecànica::Disseny i construcció de vehicles |
| Resumo: | In this project, a Formula Student rear wing is designed in CATIA V5, and its performance is tested aerodynamically through CFD simulations using Siemens Star CCM+. This design is meant to be a concept for a formula student car. First, important design aspects like the number of elements of the wing and their chord, angle of attack, and relative position are studied and compared by means of a cost function. When the final design is obtained a DRS (Drag Reduction System) with a study of the optimal opening angle is implemented and surface texturing is studied. To validate these results a scaled model is 3D printed and tested in a wind tunnel showing a good correlation (error below 10%). For this, the CAD with the final geometry is scaled and adapted to be 3D printed including features such as pressure taps tubes and holes for the joints of both half parts printed. Finally, a manufacturing process proposal based on bibliography is presented. The designed device produces a total downforce of 298.00 Newton with an efficiency of 2.53. The DRS angle study permits achieving an efficiency of 4.08 with a decrease in negative lift of 27.70%. These findings are robustly supported by wind tunnel outcomes, where the rear wing exhibits a �! of 4.02 and 5.75 with closed and open DRS respectively and the efficiencies were 2.60 and 4.23. The surfaces of the wing must be the smoothest possible to maximize performance validated with CFD simulations looking at surface texturing study results. Drawing insights from relevant literature, the most suitable (cost-effective) manufacturing method is determined to be the hot-wire cutting of foam enveloped in carbon fiber. This can be achieved as all the flaps of the wing have a constant section over the span. |
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