Numerical Investigations on the Effect of Isothermal Multi-Jets in Air Curtains with LES Approach

Sahnoun, Rachid; Liazid, Abdelkrim; Naima, Khatir

doi:10.15866/ireme.v13i1.16592

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2020

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“…The separation of two media by a single jet is often used to reduce heat and mass transfer. Several experimental and numerical investigations evoke the fact that the double jets allow a better separation compared to the simple jet, because the intensity of axial turbulence is much lower [1], [2], [5]. This paper is a numerical simulation using the LES approach in order to make a detailed study of the behaviour of the double jet, whether vertically or horizontally.…”

Section: Introductionmentioning

confidence: 99%

Numerical simulation of double jet impinging a flat and fixed wall with WALE model

et al. 2020

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This work focuses on the study of the averaged velocity and the turbulent intensity of the double jet impingement is used to separate two adjacent cellule. Numerical LES investigations are carried out in this study. A jet impingement against a flat and smooth surface without recirculation was used for this. The WALE (Wall Adapting Local Eddy) structure models the sub grid-scale tensor. The jet opening ratio is H/e = 10 and the Reynolds Number Re= 2000. Result comparisons to available experimental measurements are performed and good agreements are noticed.

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Section: Introductionmentioning

confidence: 99%