Note that chordwise position ( x) is used instead of distance along the mean line ( s).
) which is related to chordwise position ( x) as follows,
The vorticity distribution is given as a function of the angular variable ( q This function is Glauert's approximation and is based on Joukowski transformation results and obeys the Kutta condition with zero vorticity at the trailing edge. The assumed distribution function is shown in the following equation. The vortices along the mean line form a continuous vorticity distribution. For incompressible, inviscid flow, an aerofoil section can be modelled by a distribution of vortices along the mean line. A simple solution for general two-dimensional aerofoil sections can be obtained by neglecting thickness effects and using a mean-line only section model.
0 kommentar(er)
