Accession Number:

ADP002262

Title:

The Break-up Mechanism of a Streamwise Directed Vortex,

Personal Author(s):

Corporate Author:

TRONDHEIM UNIV (NORWAY) INST FOR MEKANIKK

Report Date:

1983-07-01

Abstract:

The present paper considers the possible break-up mechanism of a vortex with its axis parallel to the direction of the mean flow. Such streamwise directed vortices have been considered first of all by G.I. Taylor 1 in his famous investigation of the stability of the flow between two concentric cylinders. H. Gorlter 2 has made his studies of streamwise directed vortices along a concave wall. In both these cases the vortices created seem to be very stable in the side-wise direction. However, the G.I. Taylor vortices do not change in the direction of the mean flow, and thus do not exhibit any breakup mechanisms. In very many cases encountered under different flow conditions the breakup of a stream-wise directed vortex occurs after a certain distance downstream, and it is the purpose of this presentation to exhibit a possible mechanism whereby such a break-up can occur. This mechanisms is inherent in the basic equations of the flow, and as such may also be exhibited on the equations of motion a non-viscous fluid. Author

Supplementary Note:

This article is from 'Aerodynamics of Vortical Type Flows in Three Dimensions: Conference Proceedings Held at Rotterdam, Netherlands on 25-28 April 1983,' AD-A135 157, p24-1-24-5.

Pages:

0005

File Size:

0.00MB

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