Dahbia Benmouhoub e-mail: [email protected]
Amina Mataoui e-mail: [email protected] Laboratoire de Mécanique des Fluides Théorique et Appliquée, Faculté de Physique, Université des sciences et de la technoiogie Houari Boumedlene, B.P. 32, Bab Ezzouar, 16111 Al Alia, Alger, Algérie
Turbulent Heat Transfer From a Slot Jet Impinging on a Flat Plate Theflowfield and heat transfer of a plane impinging jet on a hot moving wall were investigated using one point closure turbulence model. Computations were carried out by means of a flnite volume method. The evolutions of mean velocity components, vorticity, skin friction coefficient, Nusselt number and pressure coefficient are examined in this paper. Two parameters of this type of interaction are considered for a given impinging distance of 8 times the nozzle thickness (H/e = 8): the jet-surface velocity ratio and the jet exit Reynolds number. The flow fleld structure at a given surface-to-jet velocity ratio is practically independent to the jet exit Reynolds number. A slight modiflcation of the flow fleld is observed for weak surface-to-jet velocity ratios while the jet is strongly driven for higher velocity ratio. The present results satisfactorily compare to the experimental data available in the literature for R^j < 1 .The purpose of this paper is to investigate this phenomenon for higher R^j values (0
Amina Mataoui e-mail: [email protected] Laboratoire de Mécanique des Fluides Théorique et Appliquée, Faculté de Physique, Université des sciences et de la technoiogie Houari Boumedlene, B.P. 32, Bab Ezzouar, 16111 Al Alia, Alger, Algérie
Turbulent Heat Transfer From a Slot Jet Impinging on a Flat Plate Theflowfield and heat transfer of a plane impinging jet on a hot moving wall were investigated using one point closure turbulence model. Computations were carried out by means of a flnite volume method. The evolutions of mean velocity components, vorticity, skin friction coefficient, Nusselt number and pressure coefficient are examined in this paper. Two parameters of this type of interaction are considered for a given impinging distance of 8 times the nozzle thickness (H/e = 8): the jet-surface velocity ratio and the jet exit Reynolds number. The flow fleld structure at a given surface-to-jet velocity ratio is practically independent to the jet exit Reynolds number. A slight modiflcation of the flow fleld is observed for weak surface-to-jet velocity ratios while the jet is strongly driven for higher velocity ratio. The present results satisfactorily compare to the experimental data available in the literature for R^j < 1 .The purpose of this paper is to investigate this phenomenon for higher R^j values (0
