Symmetrical Joukowsky Airfoils in Shear Flow

Hsue-shen Tsien

(California Institute of Technology)

1. Problem

The usual two-dimensional theory of airfoils assumes a uniform velocity for points far from the airfoil. There are many applications where this condition is not satisfied. For example near the ground there is a large vertical velocity gradient, and therefore a first approximation to the problem can be obtained by assuming a linear velocity distribution. This has, in fact, been done by H. v. Sanden[1] in connection with O. Lilienthal’s experiments in natural wind. However, v. Sanden used a numerical method of integrating the differential equation and carried out the calculation only for a wedge-shaped body. Th. von Kármán* suggested to ...

Get Collected Works of H. S. Tsien (1938-1956) now with the O’Reilly learning platform.

O’Reilly members experience live online training, plus books, videos, and digital content from nearly 200 publishers.