Vorticity profiles and streak-lines in axially perturbed coflowing jets

A. Viedma; Cristina Cuerno

doi:10.1117/12.150534

6 August 1993 Vorticity profiles and streak-lines in axially perturbed coflowing jets

A. Viedma, Cristina Cuerno

Author Affiliations +

Proceedings Volume 2052, Fifth International Conference on Laser Anemometry: Advances and Applications; (1993) https://doi.org/10.1117/12.150534
Event: Laser Anemometry: Advances and Applications: Fifth International Conference, 1993, Koningshof, Veldhoven, Netherlands

Abstract

The development of coherent structures formed between coflowing vertical jets at moderate Reynolds numbers has been studied experimentally. By means of phase-locked LDV and flow visualization it has been possible to produce data enough to describe the flow subjected to the effects of axial forcing. Flow mapping includes axial and radial phase averaged velocity profiles, vorticity profiles, streamlines and streak-lines. Vorticity dynamics inferred from these data as well as streak-lines shows a good agreement with flow visualization. Mixing between the streams is also analyzed, improving with higher levels of forcing amplitude.

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A. Viedma and Cristina Cuerno "Vorticity profiles and streak-lines in axially perturbed coflowing jets", Proc. SPIE 2052, Fifth International Conference on Laser Anemometry: Advances and Applications, (6 August 1993); https://doi.org/10.1117/12.150534

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