Eppler Airfoil Design and Analysis Code

The code described in this paper has been developed over the past 45 years. It combines three methods:

A conformal-mapping method for the design of airfoils with prescribed velocity-distribution characteristics
A panel method for the analysis of the potential flow about given airfoils
An integral boundary-layer method

It is very efficient and has been successfully applied at Reynolds numbers from 30,000 to 50,000,000. A compressibility correction to the velocity distributions, which is valid as long as the local flow is not supersonic, has been incorporated into the code.

Read the Full Paper

Download the complete paper: Eppler Airfoil Design and Analysis Code (PDF)

For the theoretical foundations behind the code, see Subsonic Airfoil Design. For related technical reports by Eppler and Somers, see Publications.

Availability

The Eppler Code is available, for a fee, exclusively from the following sources:

In North America

Dan M. Somers — Email

Everywhere Else

Prof. Dr. Richard Eppler Leibnizstr. 84 D-70193 Stuttgart GERMANY

Richard Eppler and Dan Somers discuss a finer point of the code

Dick and Dan discuss a finer point of the code