Formation and Behavior of the Vortices Associated with a Transverse Jet
Generating mechanism and growth and decay processes of the vortex pair induced by a jet issuing normal to a cross flow have been experimentally investigated in a subsonic range. The laser-sheet visualization has shown that: (1) The jet behaves like a solid cylinder for a distance from the jet exit. (2) A low energy region due to the jet diffusion spreads only laterally in jet cross-sections. The growth and decay processes are also shown using velocity vectors in the jet cross-sections. A simple infinite linear vortex model of the vortex pair has successfully explained characteristic features of the velocity field induced by the vortex pair.
KeywordsCross Flow Vortex Pair Horseshoe Vortex Solid Cylinder Channel Floor
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