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

• 作者: Amir Asghari Seyyed Abdolreza Gandjalikhan Nassab
• 来源期刊: 电子器件冷却与温度控制期刊(英文)
• 学科: 物理学
• 关键词: BACKWARD FACING Step TURBULENT FORCED Convection Flow Radiation Heat Transfer Discrete ORDINATE Method
• 年，卷（期）: 2013,（3）
• 页码范围: 94-100
• 页数: 7页
• 分类号: O3

摘要

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.