Generality of Brownian motion velocity of two phase approach in interrupted microchannel heat sink

被引：16

作者：

Tokit, E. Mat ^{[1
]}

Yusoff, M. Z. ^{[2
]}

Mohammed, H. A. ^{[3
]}

机构：

[1] Univ Tekn Malaysia Melaka, Fac Mech Engn, Durian Tunggal 76100, Melaka, Malaysia

[2] Univ Tenaga Nas, Coll Engn, Dept Mech Engn, Kajang 43000, Selangor, Malaysia

[3] Univ Teknol Malaysia, Fac Mech Engn, Dept Thermofluids, Skudai 81310, Johor Bahru, Malaysia

来源：

INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER | 2013年 / 49卷

关键词：

Nanofluid; Two phase model; Brownian motion velocity; Microchannel heat sink; LAMINAR MIXED CONVECTION; THERMAL-CONDUCTIVITY; NANOFLUIDS; MODEL; FLOW;

D O I：

10.1016/j.icheatmasstransfer.2013.10.005

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The thermal performance of a single interrupted microchannel heat sink is analyzed. The generality of Brownian motion velocity had been investigated in the range of various Reynolds numbers of 168 to 1200 and Al2O3 nanofluid volume fractions of 0.01 to 0.04. Three different Brownian motion velocities represent the nanoparticle velocity had been modeled in two-phase modeling of nanofluid system. The heat transfer enhancement in this study is investigated in terms of the predicted Nusselt number. As the Reynolds number increased from 200 to 1200, augmentation in average Nusselt number is predicted from 57.64% to 57.97%. At increasing nanofluid volume fraction from 0.01 to 0.04, conduction dominated the heat transfer process results in Nusselt number increment from 3.90% to 5.13%. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：128 / 135

页数：8

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