The Influence of Length on the Structure of a Swirling Flow in an Isothermal Burner

10 Pages Posted: 22 Apr 2019 Last revised: 31 May 2019

See all articles by Oussama Benbouaziz

Oussama Benbouaziz

University Larbi Ben M’Hidi of Oum El Bouaghi

Redjem Hadef

University Larbi Ben M’Hidi of Oum El Bouaghi

Date Written: April 18, 2019

Abstract

This paper presents a numerical study of an isothermal swirling flow in a cylindrical chamber; the purpose of this study is to show the influence of length reduction in an axisymmetric configuration on the average characteristics of the flow structure. The calculation results are valid for a low intensity of Swirl number(S = 0.45).The parameters measurements are made by a hot-wire anemometer at different longitudinal stations, we used the numerical approach RANS accompanied by the CFD method based on the three models with turbulent viscosity :( k - ε realizable (RKE) .k - ε RNG and SST k-ω (SST)). The numerical results confrontation showed that the length reduction of the confinement up to 20% does not change the flow structure especially in the central recirculation zone generated by the presence of the swirl. This result is a very interesting result because it will reduce the calculation execution time, which will make the simulation of large structures possible (Hybrid RANS-LES or LES) which is being treated in real time.

Keywords: simulation, turbulence, swirl, swirling, two-dimensional, axisymmetric

Suggested Citation

Benbouaziz, Oussama and Hadef, Redjem, The Influence of Length on the Structure of a Swirling Flow in an Isothermal Burner (April 18, 2019). 2nd National Conference on Computational Fluid Dynamics & Technology 2018 (CFD & Tech 2018). Available at SSRN: https://ssrn.com/abstract=3374270 or http://dx.doi.org/10.2139/ssrn.3374270

Oussama Benbouaziz (Contact Author)

University Larbi Ben M’Hidi of Oum El Bouaghi ( email )

Oum El Bouaghi
Algeria

Redjem Hadef

University Larbi Ben M’Hidi of Oum El Bouaghi ( email )

Oum El Bouaghi
Algeria

Register to save articles to
your library

Register

Paper statistics

Downloads
14
Abstract Views
103
PlumX Metrics