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First Thermal and Fluids Engineering Summer Conference

ISSN: 2379-1748


Nassira Nouali
Theoretical and applied laboratory of fluid mechanics Faculty of physics, University of Science and technology Houari Boumedienne, Algiers, Algeria

Amina Mataoui
Laboratoire de Mécanique des Fluides Théorique et Appliquée - Faculté de Physique Université des Sciences et de la Technologie Houari Boumediene

DOI: 10.1615/TFESC1.fnd.013009
pages 883-893

KEY WORDS: Triple plane free jet, RANS modeling, CFD, stagnation point, heat transfer, similarity


Both velocity and temperature spreading depend strongly on the flow type related to their ratios between the side jets to the central one. This work focuses on numerical investigation of non isothermal three parallel non-ventilated turbulent plane jets. The numerical predictions confirm the three known of flow patterns given by the available flow visualization and reveal a fourth one. Both centerline and crosswise profiles of the mean velocity and temperature are found similar for several temperature gaps for each velocity and temperature ratios. The purpose of this study is to explore the effect of the velocity ratios on the decay rates of the velocity and temperature in the fully developed region. It is found that the addition of side jets increase the rate of decrease of the centerline velocity for the flow of first type and decreases in the other cases. One established several correlations of the rate of decrease that play an important role in the diffusion of momentum and temperature.

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