AIRFOIL

"http://www.grc.nasa.gov/WWW/K-12/airplane/foil2.html"

This is a beta 1.5a version of the FoilSim II program, and you are invited to participate in the beta testing.

FoilSim II

With this software you can investigate how an aircraft wing produces lift by changing the values of different factors that affect lift.

There are several different versions of FoilSim II which require different levels of experience with the package, knowledge of aerodynamics, and computer technology. This web page contains the on-line student version of the program. It includes an on-line user's manual which describes the various options available in the program and includes hyperlinks to pages in the Beginner's Guide to Aerodynamics describing the math and science of airfoils. More experienced users can select a version of the program which does not include these instructions and loads faster on your computer. You can download these versions of the program to your computer by clicking on this yellow button:

http://www.grc.nasa.gov/WWW/K-12/airplane/foil2.html


everything is clearly explained in the link given above....