Investigating the diameter of solid particles effects on a laminar nanofluid flow in a curved tube using a two phase approach

被引：130

作者：

Akbarinia, A. ^{[1
,2
]}

Laur, R. ^{[2
]}

机构：

[1] Int Ctr Sci High Technol & Environm Sci, Energy Res Inst, New Energies Dept, Mahan, Iran

[2] Univ Bremen, ITEM, Bremen, Germany

来源：

INTERNATIONAL JOURNAL OF HEAT AND FLUID FLOW | 2009年 / 30卷 / 04期

关键词：

Nanofluid; Two phase; Curved tube; Laminar; THERMAL-CONDUCTIVITY ENHANCEMENT; HEAT-TRANSFER ENHANCEMENT; FLUIDS;

D O I：

10.1016/j.ijheatfluidflow.2009.03.002

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

In this paper, we report the results of our numerical studies on laminar mixed convection heat transfer in a circular Curved tube with a nanofluid consisting of water and 1 vol.% Al2O3. Three dimensional elliptic governing equations have been used. Two phase mixture model and control volume technique have been implemented to study flow field. Effects of the diameter of particles diameter decreases the Nusselt number and secondary flow, while the axial velocity augments. When the particles are in order of nano meter, increasing the diameter of particles, do not change the flow behaviors. The distribution of solid nanoparticles is uniform and constant in curved tube (C) 2009 Elsevier Inc. All right reserved.

引用

页码：706 / 714

页数：9

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