Journal of Flow Visualization and Image Processing

ISSN for PRINT: 1065-3090

For Online Access

Best Paper Award Selection - Editorial Board Site

2004, Volume11

Issue 3

104 pages

DOI: 10.1615/JFlowVisImageProc.v11.i3

Issue price - $154.00

Yassine Zaouali
UMMFT, 03/UR/11-09, Ecole Nationale d'Ingenieurs de Monastir, TUNISIE

Habib Ben Aissia
Unit de Metrologie en Mecanique des Fluides et Thermique, UMFT 03/UR/11-09, Ecole Nationale d'Ingnieurs de Monastir, Rue Ibn El Jazzar, 5019, Monastir, Tunisie

Najah Kechiche
Unit de Metrologie en Mecanique des Fluides et Thermique, UMFT 03/UR/11-09, Ecole Nationale d'Ingnieurs de Monastir, Rue Ibn El Jazzar, 5019, Monastir, Tunisie

Jacques Jay
Laboratoire Traitement du Signal et Instrumentation, UMR CNRS 5516, 23 rue du Docteur Paul Michelon, 42023 Saint Etienne, France

Jean-Paul Schon
LTSI, UMR CNRS 5516 — Univ. J. MONNET, Saint-Etienne, FRANCE

The purpose of this work is to investigate the laminar zone of an axisymmetric jet at low Reynolds numbers with long laminar regions. Flow visualization associated with image processing is used to study the instabilities in the transition zone. The first instabilities which appear are the sinuous mode or (and) the varicose mode followed by symmetric or anti-symmetric Kelvin-Helmholtz instabilities. In this work, we study particularly the sinuous mode. Quantitative results are given on the frequencies and the velocity phase of the instabilities.

DOI: 10.1615/JFlowVisImageProc.v11.i3.40 Download article, 16 pages

Article price - $35.00

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