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IMPACT OF THE TEMPERATURE GRADIENT BETWEEN TWIN INCLINED JETS AND AN ONCMOING CROSSFLOW ON THEIR RESULTING HEAT TRANSFER

DOI: 10.1615/ICHMT.2009.CONV.460
14 pages

Amina Radhouane
Unité de Thermique et de Thermodynamique des Procédés Industriels, Ecole Nationale d'Ingénieurs de Monastir, Route de Ouardanine, 5000 Monastir, Tunisia

Nejla mahjoub
energetique

Hatem Mhiri
Unité de Thermique et Environnement, Ecole Nationale d'Ingénieurs de Monastir, Route de Ouardanine 5000, MONASTIR, TUNISIE

Georges Le Palec


Philippe Bournot
IUSTI UMR CNRS 6595, Technopole de Chateau-Gombert, 5 rue Enrico Fermi, 13013 Marseille Cedex 20 - France

要約

This paper deals with the interaction of twin inclined jets in crossflow. The consideration of this particular configuration is of great interest due to its wide presence in various domains and applications and to its dependence in many parameters. These parameters may be geometric like the jets’ height, the jet nozzles’ separating distance, the jet nozzles, exit section, etc... It may also be based upon one of the reigning features like the velocity ratio, the temperature gradient, etc…the gradient between the jets and the crossflow temperatures is precisely the parameter we intend to handle in the present work due to its great relevance in several environmental concerns and in technical constraints as well. The evaluation of this parameter will be carried out numerically on the temperature distribution itself. This evaluation is likely to give a thorough idea about the cooling/heating process resulted from the jets’ interaction with the oncoming crossflow. Such an understanding is likely to give viable solutions to problems raised by this configuration like the acid rain engendered by too hot fumes or the deterioration of the combustors’ walls by too high temperature jets, etc…
The numerically simulated model is based on the resolution of the Navier-Stokes equations by means of the finite volume method and the RSM second order turbulent model and is validated by confrontation to experimental data depicted on the same geometric replica.

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