Book Description

The report reviews the program in progress which is aimed at increasing an understanding of the decay of the trailing vortex systems behind aircraft. The program concerns a study of the effect of turbulent shear on the decay of a single vortex. The ultimate aim of the program is the development of a method by which the effects of turbulence, whether introduced initially in the center of a vortex or contained in the fluid in which the vortex is formed, could be calculated. The program consists of two parts. The first part is directed towards the development of analytical tools for the prediction of the effects of turbulence. The second part is an experimental program designed to obtain data against which the computational techniques may be checked. (Author).