Article ID Journal Published Year Pages File Type
659684 International Journal of Heat and Mass Transfer 2011 9 Pages PDF
Abstract

The numerical modeling of the conjugate heat transfer and fluid flow of Al2O3/water nanofluid through the microchannel heat sink is presented in the paper. The laminar flow regime was considered along with viscous dissipation effect. The microchannel heat sink with square microchannels and Dh = 50 μm is considered. The heat flux was fixed to q = 35 W/m2 with heating and cooling cases. The water based Al2O3 nanofluid was encountered with various volume concentrations of Al2O3 particles ϕ=1–9%ϕ=1–9% and three diameters of the particle dp = 13, 28 and 47 nm. The analysis is performed on the results obtained for the local heat transfer coefficients based on a fixed pumping power. The results reveal a different local heat transfer behavior compared to the analysis made on a basis of the constant Re.

Related Topics
Physical Sciences and Engineering Chemical Engineering Fluid Flow and Transfer Processes
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