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Flow simulation around a double airfoil of a Formula Student vehicle

Venianaki Aikaterini

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Summary

This thesis delves into an in-depth analysis of the aerodynamic performance of a double front wing, designed for the Formula Student competition vehicle of the Technical University of Crete. The design phase involved utilizing Computer-Aided Design (CAD) software, namely CATIA V5 R20, to create a detailed CAD model of the double front wing. Employing parametric modeling techniques ensured accuracy and adaptability in the design process. Subsequently, simulations were conducted using ANSYS 2019 R2 CFX, delving into the realm of computational fluid dynamics (CFD) to evaluate the airflow characteristics surrounding the double airfoil configuration. The study commences with an exploration of aerodynamics in Formula 1 race cars, encompassing fundamental concepts such as downforce, lift, drag, and their respective coefficients. Theoretical foundations of wing theory are then examined, elucidating the influence of geometrical characteristics such as airfoil shape, camber, and thickness on aerodynamic performance. Further investigation extends to mechanics of boundary layers, ground effect phenomena, and utilization of aerodynamic devices in Formula 1 racing, including front and rear wings. Transitioning into the design and development phase, the thesis adheres to a comprehensive design process aligned with Formula SAE regulations. Leveraging parametric modeling techniques within CATIA V5 R20 facilitates the creation of a detailed CAD model, imperative for subsequent flow simulation analyses. The thesis progresses into iterative refinement, leveraging the initial simulation as a foundational point for innovation and improvement. Two additional models, representing enhanced iterations of the original design, are meticulously developed and subjected to simulation scrutiny. Design variations encompass the integration of Gurney Flaps and Vortex Generators. This iterative process utilizes insights gleaned from CFD analysis to inform design refinements, ultimately optimizing aerodynamic performance and efficiency. This investigation not only enhances understanding of aerodynamic principles in Formula Student vehicle design but also offers practical insights into the design and simulation of race car aerodynamics. In conclusion, this thesis showcases a comprehensive approach to aerodynamic development and optimization of a front wing, harnessing advanced CAD and CFD techniques.

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