Webfoil is a free, web-based airfoil design tool that also serves as a database that contains information and numerical data for each airfoil.
Coordinates, numerical data, and other information related to the airfoils are available on the Database page.
- Coordinates in the database are normalized into the same format. This process is described below.
- Numerical data is generated from 3 methods: Xfoil and ADflow, two computational fluid dynamics (CFD), and a surrogate model. Many airfoils also have experimental data collected from various sources. These sources are further described below.
- Additional information includes thickness and camber descriptions and a list of aircraft in which the airfoil is used. The list of aircraft is taken from The Incomplete Guide to Airfoil Usage.
On the Analysis page, there are two tabs: Analyze and Optimize. In the Analyze tab, the airfoil geometry is depicted graphically, along with the numerical data from the database plotted on several graphs. The Mach number and Reynolds number can be varied to show different data sets. The coefficients of lift, drag, and moment are displayed for a user-specified angle of attack.
In the Optimize tab, the selected airfoil is optimized based on conditions specified by the user. Multipoint optimization for more than one condition is also supported, for which the weight of each condition can also be specified.