Convective heat transfer over a heated square porous cylinder in a channel

Horng-Wen Wu, Ren Hung Wang

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

A numerical study is made of the unsteady flow and convection heat transfer for a heated square porous cylinder in a channel. The general Darcy-Brinkman-Forchheimer model is adopted for the porous region. The parameters studies including porosity, Darcy number, and Reynolds number on heat transfer performance have been explored in detail. The results indicate that the average local Nusselt number is augmented as the Darcy number increases. The average local Nusselt number increases as Reynolds number increases; in particular, the increase is more obvious at a higher Darcy number. In contrast, the porosity has slight influence on heat transfer.

Original languageEnglish
Pages (from-to)1927-1937
Number of pages11
JournalInternational Journal of Heat and Mass Transfer
Volume53
Issue number9-10
DOIs
Publication statusPublished - 2010 Apr 1

Fingerprint

convective heat transfer
Engine cylinders
Nusselt number
Reynolds number
Porosity
heat transfer
Heat transfer
Heat convection
Unsteady flow
porosity
unsteady flow
convection

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Mechanical Engineering
  • Fluid Flow and Transfer Processes

Cite this

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Convective heat transfer over a heated square porous cylinder in a channel. / Wu, Horng-Wen; Wang, Ren Hung.

In: International Journal of Heat and Mass Transfer, Vol. 53, No. 9-10, 01.04.2010, p. 1927-1937.

Research output: Contribution to journalArticle

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AB - A numerical study is made of the unsteady flow and convection heat transfer for a heated square porous cylinder in a channel. The general Darcy-Brinkman-Forchheimer model is adopted for the porous region. The parameters studies including porosity, Darcy number, and Reynolds number on heat transfer performance have been explored in detail. The results indicate that the average local Nusselt number is augmented as the Darcy number increases. The average local Nusselt number increases as Reynolds number increases; in particular, the increase is more obvious at a higher Darcy number. In contrast, the porosity has slight influence on heat transfer.

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