The Effects of Vortex Generator Types on Heat Transfer and Flow Structure in a Rectangular Duct Flows

In this numerical study a detailed evaluation of the heat transfer characteristics and flow structure in a laminar and turbulent flow through a rectangular channel containing built-in of different type vortex generator has been a accomplished in a range of Reynolds number between 500 and 100,000.A m...

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Autores principales:	Laith J.H, Dr. Sabah Tarik Ahmed, Waheed S. Mohammed
Formato:	article
Lenguaje:	EN
Publicado:	Al-Khwarizmi College of Engineering – University of Baghdad 2008
Materias:	CFD Turbulators Heat Transfer and Fluid Flow Rectangular Duct. Chemical engineering TP155-156 Engineering (General). Civil engineering (General) TA1-2040
Acceso en línea:	https://doaj.org/article/2f00e21dafb6428f9105719f72de9cf0
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spelling	oai:doaj.org-article:2f00e21dafb6428f9105719f72de9cf02021-12-02T05:25:06ZThe Effects of Vortex Generator Types on Heat Transfer and Flow Structure in a Rectangular Duct Flows1818-1171https://doaj.org/article/2f00e21dafb6428f9105719f72de9cf02008-01-01T00:00:00Zhttp://www.iasj.net/iasj?func=fulltext&aId=2281https://doaj.org/toc/1818-1171In this numerical study a detailed evaluation of the heat transfer characteristics and flow structure in a laminar and turbulent flow through a rectangular channel containing built-in of different type vortex generator has been a accomplished in a range of Reynolds number between 500 and 100,000.A modified version of ESCEAT code has been used to solve Navier-Stokes and energy equations. The purpose of this paper is to present numerical comparisons in terms of temperature, Nusselt number and flow patterns on several configurations of longitudinal vortex generator including new five cases. The structures of heat and flow were studied, using iso-contours of velocity components, vortices, temperature and Nusselt number. This study shows that the predicted structures of fluid flow, temperature fields and Nusselt number variation are strongly affected by the presence of the turbulators. Staggered arrangement gains high Nusselt number, also the lower and upper arrangements have higher Nusselt number than plane duct. High Reynolds number (higher air inlet velocity) will enhance the Nusselt number. Increase in ribs height will enhance the heat transfer as it works as surface area and turbulator at the same time. Laith J.HDr. Sabah Tarik AhmedWaheed S. MohammedAl-Khwarizmi College of Engineering – University of BaghdadarticleCFD TurbulatorsHeat Transfer and Fluid FlowRectangular Duct.Chemical engineeringTP155-156Engineering (General). Civil engineering (General)TA1-2040ENAl-Khawarizmi Engineering Journal, Vol 4, Iss 1, Pp 27-47 (2008)
institution	DOAJ
collection	DOAJ
language	EN
topic	CFD Turbulators Heat Transfer and Fluid Flow Rectangular Duct. Chemical engineering TP155-156 Engineering (General). Civil engineering (General) TA1-2040
spellingShingle	CFD Turbulators Heat Transfer and Fluid Flow Rectangular Duct. Chemical engineering TP155-156 Engineering (General). Civil engineering (General) TA1-2040 Laith J.H Dr. Sabah Tarik Ahmed Waheed S. Mohammed The Effects of Vortex Generator Types on Heat Transfer and Flow Structure in a Rectangular Duct Flows
description	In this numerical study a detailed evaluation of the heat transfer characteristics and flow structure in a laminar and turbulent flow through a rectangular channel containing built-in of different type vortex generator has been a accomplished in a range of Reynolds number between 500 and 100,000.A modified version of ESCEAT code has been used to solve Navier-Stokes and energy equations. The purpose of this paper is to present numerical comparisons in terms of temperature, Nusselt number and flow patterns on several configurations of longitudinal vortex generator including new five cases. The structures of heat and flow were studied, using iso-contours of velocity components, vortices, temperature and Nusselt number. This study shows that the predicted structures of fluid flow, temperature fields and Nusselt number variation are strongly affected by the presence of the turbulators. Staggered arrangement gains high Nusselt number, also the lower and upper arrangements have higher Nusselt number than plane duct. High Reynolds number (higher air inlet velocity) will enhance the Nusselt number. Increase in ribs height will enhance the heat transfer as it works as surface area and turbulator at the same time.
format	article
author	Laith J.H Dr. Sabah Tarik Ahmed Waheed S. Mohammed
author_facet	Laith J.H Dr. Sabah Tarik Ahmed Waheed S. Mohammed
author_sort	Laith J.H
title	The Effects of Vortex Generator Types on Heat Transfer and Flow Structure in a Rectangular Duct Flows
title_short	The Effects of Vortex Generator Types on Heat Transfer and Flow Structure in a Rectangular Duct Flows
title_full	The Effects of Vortex Generator Types on Heat Transfer and Flow Structure in a Rectangular Duct Flows
title_fullStr	The Effects of Vortex Generator Types on Heat Transfer and Flow Structure in a Rectangular Duct Flows
title_full_unstemmed	The Effects of Vortex Generator Types on Heat Transfer and Flow Structure in a Rectangular Duct Flows
title_sort	effects of vortex generator types on heat transfer and flow structure in a rectangular duct flows
publisher	Al-Khwarizmi College of Engineering – University of Baghdad
publishDate	2008
url	https://doaj.org/article/2f00e21dafb6428f9105719f72de9cf0
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The Effects of Vortex Generator Types on Heat Transfer and Flow Structure in a Rectangular Duct Flows

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