An estimation for velocity and temperature profiles of nanofluids in fully developed turbulent flow conditions

被引：24

作者：

Meibodi, Majid Emami ^{[1
]}

Vafaie-Sefti, Mohsen ^{[1
]}

Rashidi, Ali Morad ^{[2
]}

Arnrollahi, Azadeh ^{[2
]}

Tabasi, Mohsen ^{[3
]}

Kalal, Hossein Sid ^{[3
]}

机构：

[1] Tarbiat Modares Univ, Dept Chem Engn, Tehran, Iran

[2] Res Inst Petr Ind, Nanotechnol Res Ctr, Tehran, Iran

[3] Nucl Sci Res Sch, Nucl Sci & Technol Res Inst, Tehran, Iran

来源：

INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER | 2010年 / 37卷 / 07期

关键词：

Velocity profile; Temperature profile; Nanofluid; Convection; Friction factor; CONVECTIVE HEAT-TRANSFER; AQUEOUS SUSPENSIONS; WATER; TUBE;

D O I：

10.1016/j.icheatmasstransfer.2010.03.012

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Theoretically convective heat transfer coefficient depends on velocity and temperature profiles. In this work friction factor and convection coefficient are used in order to compare both profiles for nanofluids and base fluids. For this purpose Al2O3/water (due to its present vast experimental study) and carbon nanotube/water (manufactured and examined with our group) are selected. The results show that velocity profile of a nanofluid is similar to the velocity profile of its base fluid. It is proposed that the change of temperature profile for nanofluids compared to the base fluids is the only variable responsible for unpredictable convective heat transfer coefficient of nanofluids using available correlations. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：895 / 900

页数：6

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