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contributor authorKoji Matsubara
contributor authorTakahiro Miura
contributor authorTakuya Kawabata
contributor authorAtsushi Sakurai
date accessioned2017-05-09T00:52:21Z
date available2017-05-09T00:52:21Z
date copyrightApril, 2012
date issued2012
identifier issn0022-1481
identifier otherJHTRAO-27938#041701_1.pdf
identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/149487
description abstractThe near-wall turbulent heat transport of the three orthogonal directions was directly solved for the Prandtl numbers ranging from 0.025 to 5.0 to validate the algebraic models of the turbulent heat flux. Two kinds of thermal situations were considered in the low Reynolds number turbulent flow: (a) the case with a uniform heat flux in the spanwise direction (UHF) and (b) the case with the mean spanwise temperature gradient (STG). Among the turbulent heat flux models tested, the model of Rogers preferably predicted over the treated range of the Prandtl numbers, but it failed to reproduce the low Prandtl number effects very accurately. This paper revealed that the coefficient of the Rotta model can be modified to include the low Prandtl number effects by means of the correlation between the exact coefficient suggested by DNS and the Prandtl number.
publisherThe American Society of Mechanical Engineers (ASME)
titleSpanwise Heat Transport in Turbulent Channel Flow With Prandtl Numbers Ranging From 0.025 to 5.0
typeJournal Paper
journal volume134
journal issue4
journal titleJournal of Heat Transfer
identifier doi10.1115/1.4005077
journal fristpage41701
identifier eissn1528-8943
keywordsTurbulence
keywordsPrandtl number
keywordsHeat flux
keywordsTemperature AND Heat
treeJournal of Heat Transfer:;2012:;volume( 134 ):;issue: 004
contenttypeFulltext


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