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Numerical investigation of thermal characteristics of confined rotating multi-jet

Published online by Cambridge University Press:  30 September 2013

Mohamed Roudane ,
Larbi Loukarfi ,
Ali Khelil  and
Mohamed Hemis
Mohamed Roudane*
Affiliation:
Facultéde Génie Mécanique, USTO, Oran, Algérie
Larbi Loukarfi
Affiliation:
Université Hassiba Benbouali, Chlef, Algérie
Ali Khelil
Affiliation:
Université Hassiba Benbouali, Chlef, Algérie
Mohamed Hemis
Affiliation:
Université de Khemis Meliana, Algérie
*
a Corresponding author: [email protected]
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Abstract

For using the swirling jet for air conditioning and heating in the premises, knowledge of the thermal characteristics is more than necessary. It is for this objective that the experimental and numerical study was realized. To conduct this study, we designed and built an experimental facility to ensure proper conditions of confinement in which we placed five air blowing devices with adjustable vanes, providing multiple swirling turbulent jet with a swirl number S = 0.4. The jets were issued in the same direction and the same spacing defined between them. This study concerned the numerical simulation of the thermal mixing of confined swirling multi-jets, and examined the influence of important parameters of a swirl diffuser system on the performance characteristics. The experimental measurements are also realized for a confined domain, aiming to determine the axial and radial temperature field. The CFD investigations are carried out by an unstructured mesh to discretize the computational domain. In this work, the simulations have been performed using the finite volume method and FLUENT solver, in which the standard k-ε, K-ε realizable, k-ε RNG and the RSM turbulence model were used for turbulence computations. The validation shows that the K-ε RNG model can be used to simulate this case successfully.

Keywords

Multiple rotating jetthermal characteristicsturbulence modelsventilation improvement
Type
Research Article
Information
Mechanics & Industry , Volume 14 , Issue 4 , 2013 , pp. 317 - 324
Copyright
© AFM, EDP Sciences 2013

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