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HomeDefect and Diffusion ForumDefect and Diffusion Forum Vol. 348Thermal Field of Twin Variably Elevated Tandem...

Thermal Field of Twin Variably Elevated Tandem Jets in Crossflow

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Abstract:

Consideration is given to twin inline elliptical fume jets issuing within an oncoming cooler environmental crossflow. Jets are emitted from similar nozzles, characterized by a variable injection height. Such a configuration is found at large scale, in the industrial urban zones, and more particularly in multiple chimney power plants. It is found at small scale as well like in cooling in electronic devices. The present study is carried out numerically by means of the finite volume method together with the Reynolds Stress Model (RSM) second order turbulent closure model and non uniform grid system particularly refined around the emitting nozzles. Emphasis is put on the temperature distribution around the emitting nozzles in order to highlight the joint effect of the jets elevation and temperature. It was mainly found that both parameters are complementary and help straitening the discharged jets, leading their thermal mixing away from the injection ground. Nomenclature

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Periodical:

Defect and Diffusion Forum (Volume 348)

Pages:

155-161

DOI:

https://doi.org/10.4028/www.scientific.net/DDF.348.155

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Online since:

January 2014

Authors:

Amina Radhouane, Nejla Mahjoub Said, Hatem Mhiri, Georges Le Palec, Philippe Bournot

Keywords:

Crossflow, Injection Height, Temperature, Twin Jets

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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