Two element 3D wind tunnel app for PC

[stedwards]

I'm looking for a two element 3D wind tunnel app. Any out there that will run on a PC?

 

[Greg Bernhardt]

You could try this
http://sourceforge.net/projects/xflr5/files/

 

[stedwards]

Thank you, Greg.

The SourceForge.net website describes the application as

XFLR5 includes the xfoil program for foil analysis, and several 3d analysis methods for planes :
- a non-linear lifting line method for standalone wings
- two vortex-lattice and a 3d panel method for the analysis of aerodynamic performance of wings and plane operating at low Reynolds numbers
The latest v6 version introduces stability analysis of planes.
​

I'm not sure what all this means. I'm interested in modeling biplane configurations. Will this do it? Is each vortex lattice bound to a wing?​