Hydromagnetic mixed convective flow in a horizontal channel equipped with Cu-water nanofluid and alternated baffles

In this study, mixed convective flow in a horizontal channel equipped with alternated baffles and external magnetic field is examined numerically. The channel is partially heated from its bottom wall at high temperature Th while remaining sections along with the top wall are thermally insulated. Two...

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Autores principales:	Mohammad Mokaddes Ali, Rowsanara Akhter, Md.Musa Miah
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Magnetic field Mixed convection Nanofluids Baffles Horizontal channel Finite element method Heat QC251-338.5
Acceso en línea:	https://doaj.org/article/54061a756faf415880efeab52a1e2b8e
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spelling	oai:doaj.org-article:54061a756faf415880efeab52a1e2b8e2021-11-28T04:38:29ZHydromagnetic mixed convective flow in a horizontal channel equipped with Cu-water nanofluid and alternated baffles2666-202710.1016/j.ijft.2021.100118https://doaj.org/article/54061a756faf415880efeab52a1e2b8e2021-11-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2666202721000562https://doaj.org/toc/2666-2027In this study, mixed convective flow in a horizontal channel equipped with alternated baffles and external magnetic field is examined numerically. The channel is partially heated from its bottom wall at high temperature Th while remaining sections along with the top wall are thermally insulated. Two pairs of baffles are alternately located at both the horizontal walls. Cold nanofluid enters with parabolic velocity through the inlet port of the channel. The governing equations based on Boussinesq approximation are solved implementing finite element method. The results for the physical quantities flow and temperature fields are demonstrated via streamlines, temperature contours, average Nusselt number and average temperature. It is found that the fluid flow and heat transfer are modulated by the orientation and height of alternated baffles. Fluid motion is accelerated with rising Reynolds number and declined for increase in magnetic strength and concentration of nanoparticles. Optimum heat transfer is obtained in respect of appropriate orientation of baffles. The heat transfer augmentation is also reduced by 22.14% at Ha = 50 compared to heat transfer at Ha = 0. In addition, heat transfer rate is 33.86% more in nanofluid containing 5% nanoparticles than base fluid water.Mohammad Mokaddes AliRowsanara AkhterMd.Musa MiahElsevierarticleMagnetic fieldMixed convectionNanofluidsBafflesHorizontal channelFinite element methodHeatQC251-338.5ENInternational Journal of Thermofluids, Vol 12, Iss , Pp 100118- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Magnetic field Mixed convection Nanofluids Baffles Horizontal channel Finite element method Heat QC251-338.5
spellingShingle	Magnetic field Mixed convection Nanofluids Baffles Horizontal channel Finite element method Heat QC251-338.5 Mohammad Mokaddes Ali Rowsanara Akhter Md.Musa Miah Hydromagnetic mixed convective flow in a horizontal channel equipped with Cu-water nanofluid and alternated baffles
description	In this study, mixed convective flow in a horizontal channel equipped with alternated baffles and external magnetic field is examined numerically. The channel is partially heated from its bottom wall at high temperature Th while remaining sections along with the top wall are thermally insulated. Two pairs of baffles are alternately located at both the horizontal walls. Cold nanofluid enters with parabolic velocity through the inlet port of the channel. The governing equations based on Boussinesq approximation are solved implementing finite element method. The results for the physical quantities flow and temperature fields are demonstrated via streamlines, temperature contours, average Nusselt number and average temperature. It is found that the fluid flow and heat transfer are modulated by the orientation and height of alternated baffles. Fluid motion is accelerated with rising Reynolds number and declined for increase in magnetic strength and concentration of nanoparticles. Optimum heat transfer is obtained in respect of appropriate orientation of baffles. The heat transfer augmentation is also reduced by 22.14% at Ha = 50 compared to heat transfer at Ha = 0. In addition, heat transfer rate is 33.86% more in nanofluid containing 5% nanoparticles than base fluid water.
format	article
author	Mohammad Mokaddes Ali Rowsanara Akhter Md.Musa Miah
author_facet	Mohammad Mokaddes Ali Rowsanara Akhter Md.Musa Miah
author_sort	Mohammad Mokaddes Ali
title	Hydromagnetic mixed convective flow in a horizontal channel equipped with Cu-water nanofluid and alternated baffles
title_short	Hydromagnetic mixed convective flow in a horizontal channel equipped with Cu-water nanofluid and alternated baffles
title_full	Hydromagnetic mixed convective flow in a horizontal channel equipped with Cu-water nanofluid and alternated baffles
title_fullStr	Hydromagnetic mixed convective flow in a horizontal channel equipped with Cu-water nanofluid and alternated baffles
title_full_unstemmed	Hydromagnetic mixed convective flow in a horizontal channel equipped with Cu-water nanofluid and alternated baffles
title_sort	hydromagnetic mixed convective flow in a horizontal channel equipped with cu-water nanofluid and alternated baffles
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/54061a756faf415880efeab52a1e2b8e
work_keys_str_mv	AT mohammadmokaddesali hydromagneticmixedconvectiveflowinahorizontalchannelequippedwithcuwaternanofluidandalternatedbaffles AT rowsanaraakhter hydromagneticmixedconvectiveflowinahorizontalchannelequippedwithcuwaternanofluidandalternatedbaffles AT mdmusamiah hydromagneticmixedconvectiveflowinahorizontalchannelequippedwithcuwaternanofluidandalternatedbaffles
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Hydromagnetic mixed convective flow in a horizontal channel equipped with Cu-water nanofluid and alternated baffles

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