Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here


Looking for Empirical Airfoil Stall Criteria

Looking for Empirical Airfoil Stall Criteria

Looking for Empirical Airfoil Stall Criteria

Greetings to all,

I am looking for information sources about airfoil empirical stall criteria, depending on Mach, Re and AoA. I had a book from Poutry some time ago and a student "missplaced" it.

Could anyone point me in the right direction? It's going to take me a few days to get a new book, in the meantime I would like to know if there is any source in the internet for my problem.

Kind Regards,


RE: Looking for Empirical Airfoil Stall Criteria

Abbott and von Doenhoff's Theory of Wing Sections (the book to which moon161 refers) provides most of the information you seek for about 120 NACA wing sections, though only a few have their characteristics plotted against Mach number. If you know the maximum incompressible co-efficient of pressure, you can use Figure 148 to estimate the local Mach number for a given free stream Mach number.

The chapter on high life devices also is excellent.

RE: Looking for Empirical Airfoil Stall Criteria

Thank you moon161 and GlennE928, I've had a look and was able to get some data. As always, I'm left wishing I could have found more. I'll keep looking.


RE: Looking for Empirical Airfoil Stall Criteria

"Airfoil Data", "Airfoil Stall Data", or "Stall Criteria" - they actually refer to rather different things, falling within the broad scope of aerodynamics.

If you want to know something about airfoil stall characteristics in the deep stall range, try hunting down the Sandia Labs tests on airfoils they were using on wind turbines back in the 1970's, because their egg-beater blades would experience a full 360 degree rotation of their angle of attack.

If you're looking for more airfoils than are covered in Abbott and von Doenhoff's book, then look up the UIUC website with 100's more airfoils, wind tunnel tests, and most at rather low reynold's numbers, too.

Steven Fahey, CET

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close