Open Access

ARTICLE

Large Eddy Simulation of Three Dimensional Impinging Jets

Nadjib Ghiti¹

1 Corresponding Author. Doctor in Mechanical Engineering and Trainer at Petrofac Training services UAE. Tel.: +213 551 77 45 68; fax: +213 21 20 77 65. Email: ghitinadjib@gmail.com , ghitinadjib@yahoo.fr

Computer Modeling in Engineering & Sciences 2014, 99(3), 195-208. https://doi.org/10.3970/cmes.2014.099.195

Abstract

This paper presents a large eddy simulation of three dimensional vertically impinging jet on a horizontal plate. The air impinging jet was simulated using the perturbed method based on a high vortex number in the jet inlet for different ranges of Reynolds number Re= 6000, 8000, 10000, 12000, 14000 and for the same distance between the jet and the impinging plate. The effect of the Reynolds number of the air jet impinging on a horizontal plate was studied; the study showed that the vorticity magnitude is increased with the increasing of the Reynolds number. The turbulent flow jet was decomposed into three principal regions: the free jet region, the impinging point region and the wall jet region. The increase of the jet Reynolds number has a strong effect on the turbulent characteristics of the flow near the wall plate.

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