Turbulent Forced Convection of Radiative Gas Flow in a Duct with Separation

Amir Asghari, Seyyed Abdolreza Gandjalikhan Nassab

Mechanical Engineering Department, School of Engineering, Shahid Bahonar University, Kerman, Iran.

DOI: 10.4236/jectc.2013.33011                

Abstract

In the present work, a numerical solution is described for turbulent forced convection flow of an absorbing, emitting, scattering and gray fluid over a two-dimensional backward facing step in a horizontal duct. The AKN low-Reynolds-number model is employed to predict turbulent flows with separation and heat transfer, while the radiation part of the problem is modeled by the discrete ordinate method (DOM). Discretized forms of the governing equations for fluid flow are obtained by finite volume approach and solved using SIMPLE algorithm. Results are presented for the distributions of Nusselt numbers as a function of the controlling parameters like radiation-conduction parameter (RC) and optical thickness.

Keywords

Backward Facing Step; Turbulent Forced Convection Flow; Radiation Heat Transfer; Discrete Ordinate Method

Conflicts of Interest

The authors declare no conflicts of interest.

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