Inscrição na biblioteca: Guest
Portal Digital Begell Biblioteca digital da Begell eBooks Diários Referências e Anais Coleções de pesquisa
Heat Transfer Research
Fator do impacto: 0.404 FI de cinco anos: 0.8 SJR: 0.264 SNIP: 0.504 CiteScore™: 0.88

ISSN Imprimir: 1064-2285
ISSN On-line: 2162-6561

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

Heat Transfer Research

DOI: 10.1615/HeatTransRes.2015007089
pages 995-1017

SIMULATION STUDIES OF MULTIMODE HEAT TRANSFER FROM A DISCRETELY HEATED VERTICAL CHANNEL

Shrikant Londhe
Department of Mechanical Engineering, National Institute of Technology, Warangal - 506004 (A. P) India
C. Gururaja Rao
Department of Mechanical Engineering, National Institute of Technology, Warangal - 506004 (A. P) India

RESUMO

Findings of certain parametric studies made on conjugate mixed convection with surface radiation from a discretely heated vertical channel are reported here. The vertical channel has three identical discrete heat sources flush-mounted in its left wall, with the right wall serving the purpose of a heat sink. The channel is considered to be of fixed height, with its width varied by altering the aspect ratio that is defined as the ratio of the height to the width of the channel. The cooling medium is air and the heat generated in the heat sources is dissipated by a combination of mixed convection and radiation after its percolation through the channel wall. The fluid flow and heat transfer equations are considered without making the conventional boundary layer approximations and are solved using the finite volume method coupled with stream function−vorticity formulation. A computer code is prepared to solve the problem. The influence of parameters like the modified Richardson number, surface emissivity, thermal conductivity, and aspect ratio on pertinent results has been analyzed. The exclusive effect of radiation has been explored and the roles taken up by mixed convection and radiation in channel heat dissipation are investigated. The studies elucidate the prominence radiation assumes in the present kind of problems in different regimes of mixed convection.


Articles with similar content:

Finite Element Analysis of Heat Transfer within a Square Cavity with Uniform and Nonuniform Boundary Heating
Heat Transfer Research, Vol.42, 2011, issue 4
Arian Jafari, Seyyed Mohammad Ali Noori Rahim Abadi, Hossein Shokouhmand
Numerical Study of Double-Diffusive Magnetoconvection in a Cylindrical Annulus
International Journal of Fluid Mechanics Research, Vol.35, 2008, issue 1
Sankar M, M. Venkatachalappa
3D CONJUGATE NATURAL CONVECTION WITH SURFACE RADIATION IN AN ENCLOSURE
ICHMT DIGITAL LIBRARY ONLINE, Vol.0, 2014, issue
Semen G. Martyushev , Mikhail A. Sheremet, Igor V. Miroshnichenko
EFFECT OF MOVING FLAT PLATE ON HYDRO-MAGNETIC MIXED CONVECTION IN A POROUS ENCLOSURE WITH SINUSOIDAL HEATING SIDE WALLS AND INTERNAL HEAT GENERATION
Computational Thermal Sciences: An International Journal, Vol.9, 2017, issue 1
N. Nithyadevi, A. Shamadhani Begum
Natural Convection Laminar Flow with Temperature Dependent Viscosity and Thermal Conductivity Along a Vertical Wavy Surface
International Journal of Fluid Mechanics Research, Vol.36, 2009, issue 3
Md. Mamun Molla, Rama Subba Reddy Gorla