ライブラリ登録: Guest
Begell Digital Portal Begellデジタルライブラリー 電子書籍 ジャーナル 参考文献と会報 リサーチ集
Heat Transfer Research
インパクトファクター: 0.404 5年インパクトファクター: 0.8 SJR: 0.264 SNIP: 0.504 CiteScore™: 0.88

ISSN 印刷: 1064-2285
ISSN オンライン: 2162-6561

巻:
巻 50, 2019 巻 49, 2018 巻 48, 2017 巻 47, 2016 巻 46, 2015 巻 45, 2014 巻 44, 2013 巻 43, 2012 巻 42, 2011 巻 41, 2010 巻 40, 2009 巻 39, 2008 巻 38, 2007 巻 37, 2006 巻 36, 2005 巻 35, 2004 巻 34, 2003 巻 33, 2002 巻 32, 2001 巻 31, 2000 巻 30, 1999 巻 29, 1998 巻 28, 1997

Heat Transfer Research

DOI: 10.1615/HeatTransRes.2016008178
pages 817-838

THERMAL RADIATION EFFECT ON TURBULENT FORCED CONVECTION FLOW OVER A BACKWARD FACING STEP IN THE PRESENCE OF PARTICIPATING MEDIA

Amir Asghari
Mechanical Engineering Department, School of Engineering, Shahid Bahonar University, of Kerman, Kerman, Iran
S. A. Gandjalikhan Nassab
Mechanical Engineering Department, School of Engineering, Shahid Bahonar University of Kerman, Kerman, Iran

要約

The effect of radiation on turbulent forced convection flow over a two-dimensional duct with a sudden expansion was studied numerically. The medium is treated as a gray, absorbing, emitting, and scattering. The two-dimensional Reynolds-averaged Navier-Stokes equations, coupled with the energy equation and the turbulence kinetic energy equations, as well as their dissipation rates are solved numerically by the computational fluid dynamics (CFD) techniques to obtain the velocity and temperature distributions in the channel. The AKN low-Reynolds-number model is employed for computation of turbulence fluctuations. The finite volume method is adopted to solve the governing equations, while the integro-partial differential radiative transfer equation is solved by the discrete ordinates method (DOM). The SIMPLE algorithm is used for pressure-velocity decoupling. Along a benchmark problem, the numerical results are compared with some experimental data and good agreement is found. Results are presented for the distributions of bulk temperature and Nusselt numbers by varying the controlling parameters, i.e., radiation-conduction parameter (RC), optical thickness, single scattering albedo, and wall emissivity. Two different thermal boundary conditions are considered and results show that the gas radiation has a significant effect on the heat transfer.


Articles with similar content:

TRANSIENT RADIATION AND CONDUCTION HEAT TRANSFER IN TWO-DIMENSIONAL COMPLEX GEOMETRIES
ICHMT DIGITAL LIBRARY ONLINE, Vol.17, 2007, issue
Fatmir Asllanaj, Laetitia Soudre
NUMERICAL ANALYSIS OF HYPERSONIC FLOW COUPLED WITH RADIATION AROUND BLUNT-NOSED MODELS
ICHMT DIGITAL LIBRARY ONLINE, Vol.0, 2019, issue
Sanket Razdan, Apurva Bhagat, Nishanth Dongari
Coupled fluid flow and simultaneous heat and mass transfer model for convective drying of potato
Proceedings of the 24th National and 2nd International ISHMT-ASTFE Heat and Mass Transfer Conference (IHMTC-2017), Vol.0, 2017, issue
Prabal Talukdar, Punit Singh, Dalbir Singh
LARGE-EDDY SIMULATION OF TURBULENT FLOW AND HEAT TRANSFER IN A RIBBED SQUARE CHANNEL FLOW
International Heat Transfer Conference 13, Vol.0, 2006, issue
Odile Labbe
MIXED-CONVECTION AND THERMAL RADIATION HEAT TRANSFER IN A THREE-DIMENSIONAL ASYMMETRICALLY HEATED VERTICAL CHANNEL
Heat Transfer Research, Vol.45, 2014, issue 6
Farzad Bazdidi-Tehrani, Alireza Safakish