Natural Convection Heat Transfer in an Inclined Open-Ended Square Cavity with Partially Active Side Wall

This paper reports a numerical study of flow behaviors and natural convection heat transfer characteristics in an inclined open-ended square cavity filled with air. The cavity is formed by adiabatic top and bottom walls and partially heated vertical wall facing the opening. Governing equations in v...

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Autor principal:	Jasim M. Mahdi
Formato:	article
Lenguaje:	EN
Publicado:	Al-Khwarizmi College of Engineering – University of Baghdad 2012
Materias:	Natural convection square cavity partially active side wall Chemical engineering TP155-156 Engineering (General). Civil engineering (General) TA1-2040
Acceso en línea:	https://doaj.org/article/4fad11ffbd4249fea71448d15363252e
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spelling	oai:doaj.org-article:4fad11ffbd4249fea71448d15363252e2021-12-02T04:46:20ZNatural Convection Heat Transfer in an Inclined Open-Ended Square Cavity with Partially Active Side Wall1818-11712312-0789https://doaj.org/article/4fad11ffbd4249fea71448d15363252e2012-08-01T00:00:00Zhttp://alkej.uobaghdad.edu.iq/index.php/alkej/article/view/141https://doaj.org/toc/1818-1171https://doaj.org/toc/2312-0789 This paper reports a numerical study of flow behaviors and natural convection heat transfer characteristics in an inclined open-ended square cavity filled with air. The cavity is formed by adiabatic top and bottom walls and partially heated vertical wall facing the opening. Governing equations in vorticity-stream function form are discretized via finite-difference method and are solved numerically by iterative successive under relaxation (SUR) technique. A computer program to solve mathematical model has been developed and written as a code for MATLAB software. Results in the form of streamlines, isotherms, and average Nusselt number, are obtained for a wide range of Rayleigh numbers 103-106 with Prandtl number 0.71 (air) , inclination angles measured from the horizontal direction 0º-60º , dimensionless lengths of the active part 0.4-1 ,and different locations of the thermally active part at the vertical wall. The Results show that heat transfer rate is high when the length of the active part is increased or the active part is located at middle of vertical wall. Further, the heat transfer rate is poor as inclination angle is increased. Jasim M. MahdiAl-Khwarizmi College of Engineering – University of BaghdadarticleNatural convectionsquare cavitypartially active side wallChemical engineeringTP155-156Engineering (General). Civil engineering (General)TA1-2040ENAl-Khawarizmi Engineering Journal, Vol 8, Iss 3 (2012)
institution	DOAJ
collection	DOAJ
language	EN
topic	Natural convection square cavity partially active side wall Chemical engineering TP155-156 Engineering (General). Civil engineering (General) TA1-2040
spellingShingle	Natural convection square cavity partially active side wall Chemical engineering TP155-156 Engineering (General). Civil engineering (General) TA1-2040 Jasim M. Mahdi Natural Convection Heat Transfer in an Inclined Open-Ended Square Cavity with Partially Active Side Wall
description	This paper reports a numerical study of flow behaviors and natural convection heat transfer characteristics in an inclined open-ended square cavity filled with air. The cavity is formed by adiabatic top and bottom walls and partially heated vertical wall facing the opening. Governing equations in vorticity-stream function form are discretized via finite-difference method and are solved numerically by iterative successive under relaxation (SUR) technique. A computer program to solve mathematical model has been developed and written as a code for MATLAB software. Results in the form of streamlines, isotherms, and average Nusselt number, are obtained for a wide range of Rayleigh numbers 103-106 with Prandtl number 0.71 (air) , inclination angles measured from the horizontal direction 0º-60º , dimensionless lengths of the active part 0.4-1 ,and different locations of the thermally active part at the vertical wall. The Results show that heat transfer rate is high when the length of the active part is increased or the active part is located at middle of vertical wall. Further, the heat transfer rate is poor as inclination angle is increased.
format	article
author	Jasim M. Mahdi
author_facet	Jasim M. Mahdi
author_sort	Jasim M. Mahdi
title	Natural Convection Heat Transfer in an Inclined Open-Ended Square Cavity with Partially Active Side Wall
title_short	Natural Convection Heat Transfer in an Inclined Open-Ended Square Cavity with Partially Active Side Wall
title_full	Natural Convection Heat Transfer in an Inclined Open-Ended Square Cavity with Partially Active Side Wall
title_fullStr	Natural Convection Heat Transfer in an Inclined Open-Ended Square Cavity with Partially Active Side Wall
title_full_unstemmed	Natural Convection Heat Transfer in an Inclined Open-Ended Square Cavity with Partially Active Side Wall
title_sort	natural convection heat transfer in an inclined open-ended square cavity with partially active side wall
publisher	Al-Khwarizmi College of Engineering – University of Baghdad
publishDate	2012
url	https://doaj.org/article/4fad11ffbd4249fea71448d15363252e
work_keys_str_mv	AT jasimmmahdi naturalconvectionheattransferinaninclinedopenendedsquarecavitywithpartiallyactivesidewall
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Natural Convection Heat Transfer in an Inclined Open-Ended Square Cavity with Partially Active Side Wall

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