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


Weissinger's Method

Weissinger's Method

Weissinger's Method

Hi all,

I've been working on this weissinger's method for finding symmetric span loading for sometime but I'm not able to get the results properly. I'm following the NACA report No. 921 by John DeYoung et al. The problem I face is with the L function given in the report. In all the places where v equals mu, the function goes to infinity causing the lift too to become infinite. I cant figure out what to do at these spanwise locations. Pls help me out if anyone knows.
Thank you

RE: Weissinger's Method

NACA TR-921 is a bit hard to read under mathematical point of view. Here the Weissinger L influence coefficients singularities was explained
unclear (pag. 14 aft A7 equation). An application of Weissinger L method can be found on NACA TR-1228 on computing procedure for L functions
wich explains how to avoid singularities in order to assemble the L influence coefficients matrix.

RE: Weissinger's Method

i retrieved TR 1228 ... didn't seem to elaborate the calculation of L ... looked to be s/ware evaluation ... damn! there are two reports (i search from tr1228) there's a "TR 1228" and a "NACA TR 1228" which looks to be the one (title talks about spanwise lift)

Quando Omni Flunkus Moritati

RE: Weissinger's Method

mind you, I've always used Schrenk dist'n for spanwise lift

Quando Omni Flunkus Moritati

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