This project aims do a validation and verification study of a NACA 2412 airfoil. The study will be done with three methods: Experimental study using subsonic wind tunnel at Hepia, theoretical study using panel code sofware XFOIL and numerical study using RANS solver ANSYS Fluent.
The study will be a collaboration project between EPFL and Hepia students. Where the Hepia student will do the experimental tests and the gather data that is to be used as a basis for the validation study. Theoretical and Numerical studies will be the responsibility of the EPFL students.
The results of the project will be delivered in the form of a written report. The report will describe in detail the methods used, the aerodynamic results obtained and a discussion of discrepancies and improvements.
Required tasks
Hepia students
• experimental data collection using a small test wind tunnel at Hepia
• provide a short written report on the airfoil geometry, experimental techniques and
conditions and the data (e.g. aerodynamic forces, surface pressure) obtained
EPFL students
• provide the project management, coordinating the required tasks
• using the supplied computational mesh and ANSYS Fluent, perform suitable RANS
simulations for the appropriate flow conditions
• perform an analysis of the flow around the airfoil using the XFOIL panel code
• compare the numerical, theoretical and experimental lift-drag polars
• explain any discrepancies and propose improvements
• write the final report of the project
All students
• participate (via web conferencing) in group meeting at the start and during the project
• participate in the written report of the group's results
Resources:
shorts description
Hardware: Computer
Experimental measurements
Software: XFOIL, Fluent and maybe paraview for visualization.
Software guides: given on the moodle
Workbench Users Guide v17.2
DesignModeler Users Guide v17.2
Meshing User Guide v171111.2
Fluent Meshing Users Guide v17.2
FLUENT Theory Guide v17.2
FLUENT Users Guide v17.2
References: Given on the moodle.
J.D. Anderson, “Fundamentals of Aerodynamics” Chapters 3 & 4 URL
M. Drela, “XFOIL: An analysis and design system for low Reynolds number airfoils” URL
M. Drela & H. Youngren, “XFOIL 6.94 User Guide” URL
M. Drela, “XFOIL web site” URL
G. Cowles, “XFOIL tutorial: 1 & 2” URL
I.H. Abbott & A.E. Von Doenhoff, “Theory of wing sections”