Journal of Flow Visualization and Image Processing

ISSN for PRINT: 1065-3090

For Online Access

Best Paper Award Selection - Editorial Board Site

2006, Volume13

Issue 2

110 pages

DOI: 10.1615/JFlowVisImageProc.v13.i2

Issue price - $154.00

S. Boujemaa
Faculté des Sciences de Tunis, Département de Physique, Campus Universitaire Le Belvédère, 1060 Tunis − Tunisie

Muriel Amielh
Institut de Recherche sur les Phénomènes Hors Equilibre (IRPHE), UMR CNRS 6594, Technopôle Château Gombert, 49 rue F. Joliot-Curie, B.P.146, 13384 Marseille Cedex 13 − France

M. P. Chauve
Institut de Recherche sur les Phénomènes Hors Equilibre (IRPHE), UMR CNRS 6594, Technopôle Château Gombert, 49 rue F. Joliot-Curie, B.P.146, 13384 Marseille Cedex 13 − France

An axisymmetric jet of pure helium issuing into ambient air is experimentally investigated. Fast flow visualizations associated with laser Doppler velocimetry measurements are used to study the effects of strong density variations on the dynamics of the instabilities, which develop in the near-field of the jet. Thanks to several typical space-time diagrams, made by image processing techniques, the characteristic global mode of the jet instability is highlighted and the effects of pairing processes and buoyancy on this instability mode are analyzed.

DOI: 10.1615/JFlowVisImageProc.v13.i2.40 Download article, 153-173 pages

Article price - $35.00

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