XFOIL©

XFOIL© is an interactive program for the design and analysis of two-dimensional airfoils. It consists of a collection of menu-driven routines which perform functions such as:

Viscous (or inviscid) analysis of an existing airfoil, allowing forced or free transistion.

Airfoil design and redesign by interactive specification of a surface speed distribution.

Airfoil redesign by interactive specification of new geometric parameters.

XFOIL is based upon a linear vorticity panel method coupled to a lag-dissipation boundary layer scheme. The program has been used in the design of aircraft wings, fan blades, propeller blades and hydro-foils.

Frank Dvorak

President