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contributor authorCho, Ching
contributor authorChen, Chieh
contributor authorHwang, Jenn
contributor authorChen, Cha'o
date accessioned2017-05-09T01:09:11Z
date available2017-05-09T01:09:11Z
date issued2014
identifier issn0022-1481
identifier otherht_136_01_014502.pdf
identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/155185
description abstractNumerical simulations are performed to investigate the natural convection heat transfer performance of nonNewtonian powerlaw fluids in a cavity bounded by wavy vertical walls with different temperatures and flat horizontal walls under adiabatic conditions. The results show that for Rayleigh numbers greater than 103, the mean Nusselt number has a significantly increase as the flow behavior index is decreased. Moreover, it is shown that in the convectiondominated regime, the mean Nusselt number increases with an increasing Rayleigh number, while in the conductiondominated regime, the mean Nusselt number remains approximately constant. Finally, it is shown that for a given fluid, the heat transfer performance can be optimized via an appropriate tuning of the wavelength and amplitude of the wavy surface depending on the Rayleigh number.
publisherThe American Society of Mechanical Engineers (ASME)
titleNatural Convection Heat Transfer Performance of Non Newtonian Power Law Fluids Enclosed in Cavity With Complex Wavy Surfaces
typeJournal Paper
journal volume136
journal issue1
journal titleJournal of Heat Transfer
identifier doi10.1115/1.4025134
journal fristpage14502
journal lastpage14502
identifier eissn1528-8943
treeJournal of Heat Transfer:;2014:;volume( 136 ):;issue: 001
contenttypeFulltext


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