| URN |
etd-0715125-142728 |
Statistics |
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|
| Author |
Ming-Le Yuan |
| Author's Email Address |
No Public. |
| Department |
Institute Of Mechanical Engineering |
| Year |
2024 |
Semester |
2 |
| Degree |
Master |
Type of Document |
Master's Thesis |
| Language |
zh-TW.Big5 Chinese |
Page Count |
78 |
| Title |
Flow Simulation of Automotive Rear Wings with High Aerodynamic Performance Airfoils |
| Keyword |
Optimal angles of attack
Rear wing
Airfoil
Drag
Downforce
Downforce
Drag
Airfoil
Rear wing
Optimal angles of attack
|
| Abstract |
This study aims to explore the feasibility of applying aircraft airfoils to the design of automotive rear wings. By introducing a variety of high-lift airfoils (S1223, Eppler 420, LNV 109a, Clark Y, NACA 6412, and GOE 652) and utilizing Computational Fluid Dynamics (CFD) simulation techniques, the aerodynamic performance of each airfoil was evaluated based on the downforce and drag generated at different angles of attack. The vehicle and rear wing models were constructed using SolidWorks, while XFoil was employed to determine the angle of attack of optimal lift-to-drag ratio for each airfoil. These models were then imported into ANSYS Fluent for flow field simulations. The simulation conditions were set to a vehicle speed of 120 km/h, and 13 different scenarios were comparedˇXincluding a baseline model without a rear wing and configurations using each airfoil at both 0 and their optimal angles of attack. The simulation results showed that the S1223 and Eppler 420 rear wing airfoils delivered excellent downforce efficiency at their optimal angles, with the Eppler 420 performing exceptionally well at a 7 angle of attack. It significantly enhanced vehicle stability while effectively controlling aerodynamic drag. This study validates the potential of integrating aviation airfoils into automotive aerodynamic design, offering a valuable reference for future vehicle performance optimization and safety improvement. |
| Advisor Committee |
Kun-Nan Chen - advisor
Feng-Chin Tsai - co-chair
Wei-Sin Gao - co-chair
|
| Files |
indicate access worldwide |
| Date of Defense |
2025-06-26 |
Date of Submission |
2025-07-15 |
