Confined and unconfined mixed convection flow past a rigid cube enclosed in a rectangular channel

The present work concerns the heat transfer around a rigid cube inside either in air or in water. The fluid moves inside a channel and the cube is located at the center of the channel. The cube temperature is different from the temperature of the ambient fluid and a buoyant force acts on the cube. T...

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Autor principal:	Asterios Pantokratoras
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Cube Channel Nusselt Confined Unconfined Heat QC251-338.5
Acceso en línea:	https://doaj.org/article/b62a0156424a459bb453a7e07a73e4d5
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spelling	oai:doaj.org-article:b62a0156424a459bb453a7e07a73e4d52021-11-28T04:38:30ZConfined and unconfined mixed convection flow past a rigid cube enclosed in a rectangular channel2666-202710.1016/j.ijft.2021.100120https://doaj.org/article/b62a0156424a459bb453a7e07a73e4d52021-11-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2666202721000586https://doaj.org/toc/2666-2027The present work concerns the heat transfer around a rigid cube inside either in air or in water. The fluid moves inside a channel and the cube is located at the center of the channel. The cube temperature is different from the temperature of the ambient fluid and a buoyant force acts on the cube. The Reynolds number varied between 0.01 and 100 and the Richardson number varied between -100 and 200. Both confined and unconfined flow is treated. Numerical predictions show that the Nusselt number is high in the opposing and assisting region and minimum around the forced convection. For Peclet numbers lower than 1 the Nusselt number is independent of the Richardson number and this is valid for any kind of rigid body placed in any kind of fluid.Asterios PantokratorasElsevierarticleCubeChannelNusseltConfinedUnconfinedHeatQC251-338.5ENInternational Journal of Thermofluids, Vol 12, Iss , Pp 100120- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Cube Channel Nusselt Confined Unconfined Heat QC251-338.5
spellingShingle	Cube Channel Nusselt Confined Unconfined Heat QC251-338.5 Asterios Pantokratoras Confined and unconfined mixed convection flow past a rigid cube enclosed in a rectangular channel
description	The present work concerns the heat transfer around a rigid cube inside either in air or in water. The fluid moves inside a channel and the cube is located at the center of the channel. The cube temperature is different from the temperature of the ambient fluid and a buoyant force acts on the cube. The Reynolds number varied between 0.01 and 100 and the Richardson number varied between -100 and 200. Both confined and unconfined flow is treated. Numerical predictions show that the Nusselt number is high in the opposing and assisting region and minimum around the forced convection. For Peclet numbers lower than 1 the Nusselt number is independent of the Richardson number and this is valid for any kind of rigid body placed in any kind of fluid.
format	article
author	Asterios Pantokratoras
author_facet	Asterios Pantokratoras
author_sort	Asterios Pantokratoras
title	Confined and unconfined mixed convection flow past a rigid cube enclosed in a rectangular channel
title_short	Confined and unconfined mixed convection flow past a rigid cube enclosed in a rectangular channel
title_full	Confined and unconfined mixed convection flow past a rigid cube enclosed in a rectangular channel
title_fullStr	Confined and unconfined mixed convection flow past a rigid cube enclosed in a rectangular channel
title_full_unstemmed	Confined and unconfined mixed convection flow past a rigid cube enclosed in a rectangular channel
title_sort	confined and unconfined mixed convection flow past a rigid cube enclosed in a rectangular channel
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/b62a0156424a459bb453a7e07a73e4d5
work_keys_str_mv	AT asteriospantokratoras confinedandunconfinedmixedconvectionflowpastarigidcubeenclosedinarectangularchannel
_version_	1718408280612536320

Confined and unconfined mixed convection flow past a rigid cube enclosed in a rectangular channel

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