AVL Tutorial (2) - Model your Airplane

This AVL Tutorial - Part 2 - will teach you how to model your own airplane geometry in a simple text editor for calculation in the Athena Vortex Lattice Code, which is very useful for quick and reliable Aerodynamic Analysis, Trim Calculation, Dynamic Stability Calculation.

AVL was written by Mark Drela and Harold Youngren (Massachusetts Institute of Technology).
"AVL is a program for the aerodynamic and flight-dynamic analysis of rigid aircraft
of arbitrary configuration. It employs an extended vortex lattice model for
the lifting surfaces, together with a slender-body model for fuselages and nacelles.
General nonlinear flight states can be specified. The flight dynamic analysis
combines a full linearization of the aerodynamic model about any flight state,
together with specified mass properties."

[albelnoxroxursox]

Hi, these were great videos. I have a problem - when I open the geometry window, keystroke mode does not work even though I have the cursor in the window when I hit LRUD. The picture does not rotate at all. I don't know what to do; it seems to work perfectly fine for those doing the tutorials on YouTube. Do you have any idea what might be causing this issue?

[andreaparmegiani]

Hi, i was wondering if AVL can take as an import an .stl or some form of CAD file generated in a CAD software (i.e. Rhinoceros) or if the only way to import a geometry is through the avl geometry file.

[mustafamert]

Hello, how can i make my control surface to be replaced by angle.

[dleojl]

Hello, may I know if it is possible to model a V-tail in AVL? and if so how would you go about doing it? Thank you

[nitheshkumar]

hello sir, have a question regarding the drooped wing. if the wing is divided into n sections for instance n=10, from n=8, have to droop the wing. so how to do that in AVL, sir?

[maurocanto]

Useful video, thank you, could you upload part 3? I'm having trouble when running. Regaardsss!!!

[nehisinha]

Can you please explain what non unity Gain values physically represent for control surfaces like elevons? And how do you find these values for a model?

[faisal]

I am having a weird problem that I cant really fix. whenever i tried to load the file that i created for my designed plane, AVL just shuts down. if anybody knows what exactly is the problem please answer this comment

[tifosaurus]

Hello! Thanks for the video. In the Control declaration, pls explain usage of XYZhvec.

[goldenfang]

When changing the values in the Supergee.avl file, can we work in any unit system of our choosing?

[alpergozen]

How can I calculate incidence angle from the sketch of wing?

[valeriasainez]

How to make cp 30 degrees from 25% of the root chord???