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Journal of Flow Visualization and Image Processing
SJR: 0.161 SNIP: 0.312 CiteScore™: 0.1

ISSN Imprimir: 1065-3090
ISSN On-line: 1940-4336

Journal of Flow Visualization and Image Processing

DOI: 10.1615/JFlowVisImageProc.v4.i1.10
pages 1-8

SHORT EXPOSURE PHOTOGRAPHIC TECHNIQUE APPLIED TO VISUALIZE A FREE LIQUID JET

Jorge L. Z. Tarqui
Federal University of Uberlandia, Department of Mechanical Engineering, 38400 206 - Uberlandia MG - Brazil
Aristeu Silveira-Neto
Faculdade de Engenharia Mecanica, Universidade Federal de Uberlandia, Av. Joao Naves de Avila 2121, 38408-144 Uberlandia, Brazil
Thomaz W. Mendoza-Harrell
Federal University of Uberlandia, Department of Mechanical Engineering, 38400 206 - Uberlandia MG - Brazil

RESUMO

Short exposure photographic technique was applied to visualize the instabilities that characterize the transition process from laminar to turbulent of a free liquid jet. The Rayleigh instability was visualized in the low Reynolds number flow. In the cases characterized by higher Reynolds numbers, more complex and three-dimensional instabilities were also captured. The method used can be very useful to visualize high-frequency instabilities in liquid flows.


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