Hello, I want to publish a research paper on the assessment of CFD turbulence models, I need an airfoil geometry to start with. where can I find airfoil geometry or profile? and its experimental data, cd and cl values or cl alpha values? I have searched for experimental data, but unfortunately, I did not find any.
Can you please advise me about where to find airfoil geometry and its experimental data?
what type of airfoil should I choose for the assessment of different turbulence models?
You can find airfoil geometry in the following database.
https://m-selig.ae.illinois.edu/ads/coord_database.html
http://airfoiltools.com/search/index
For validation, you may use the data given on the site but they are based on pannel methods which may not always be accurate. You may pick one particular airfoil and search its pressure distribution curve or cl vs alpha curve. For standard airfoil, you can easily get it. Following like there is a validated result:
https://confluence.cornell.edu/pages/viewpage.action?pageId=144976461
you can find the different airfoil geometry in the following site:
http://airfoiltools.com/
I hope you might find this source helpful https://urlis.net/jugffs9
I recommend you the previous links because you can easily copy and paste values from there, but you find theory, airfoil geometry and experimental data here: https://aeroknowledge77.files.wordpress.com/2011/09/58986488-theory-of-wing-sections-including-a-summary-of-airfoil-data.pdf
Also I recommend to search for experimental data here in RG.