Numerical simulation of an axisymmetric turbulent jet with variable density using a Reynolds stress model

作者：Senouci Mohammed^*; Bounif Abdelhamid

来源：Mecanique & Industries, 2011, 12(4): 315-324.

DOI：10.1051/meca/2011105

• Turbulence
• axisymmetric jets
• density effects
• second order modelling

Numerical simulation of an axisymmetric turbulent jet with variable density using a Reynolds stress model. In this paper, the nonreacting axisymmetric confined turbulent jets are studied by using the second order turbulence model. The aim is to present, in the initial region of the jet, the variable density effects, caused by a difference in temperature between the hot air and the ambient air, On the principal characteristic parameters of such flows. The numerical results obtained are then discussed in comparison with experimental data Djeridane [T. Djeridane, Contribution a l'etude experimentale de jets turbulents axisymetriques a densite variable, These de doctorat, univ. Aix-Marseille II, 1994] (relating to the air/air and He/air jets) and other found in the literature. Experimental measurements of the axial velocity, the Reynolds stress and the scalar, present qualitatively the same behaviour. The comparison of the numerical simulation

• 出版日期2011