Accession Number : AD0720852

Title :   Theoretical and Experimental Study of the Decay of Isolated Vortices.

Descriptive Note : Progress rept. Feb 69-Feb 71,

Corporate Author : AERONAUTICAL RESEARCH ASSOCIATES OF PRINCETON INC N J

Personal Author(s) : Donaldson,Coleman duP. ; Sullivan,Roger D. ; Snedeker,Richard S.

Report Date : FEB 1971

Pagination or Media Count : 34

Abstract : 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)

Descriptors :   (*VORTICES, ATTENUATION), (*AIRCRAFT, VORTICES), SHEAR STRESSES, TURBULENCE, THEORY, EQUATIONS OF MOTION

Subject Categories : Aerodynamics
      Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE