Free convection in a porous horizontal cylindrical annulus with a nanofluid using Buongiorno's model

被引：56

作者：

Sheremet, Mikhail A. ^{[1
,2
]}

Pop, Ioan ^{[3
]}

机构：

[1] Tomsk State Univ, Fac Mech & Math, Dept Theoret Mech, Tomsk 634050, Russia

[2] Tomsk Polytech Univ, Inst Power Engn, Tomsk 634050, Russia

[3] Babe Bolyai Univ, Dept Appl Math, Cluj Napoca 400084, Romania

来源：

COMPUTERS & FLUIDS | 2015年 / 118卷

关键词：

Free convection; Horizontal annulus; Porous medium; Nanofluids; Buongiorno model; Numerical method; CONJUGATE NATURAL-CONVECTION; HEAT-TRANSFER; CAVITY; FLOW; LAYER; PARTICLES; TRANSIENT; STEADY;

D O I：

10.1016/j.compfluid.2015.06.022

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

Natural convection flow in a porous concentric horizontal annulus saturated with a water based nanofluid is numerically investigated. The mathematical model used is of single-phase and is formulated in dimensionless stream function and temperature taking into account the Darcy-Boussinesq approximation and the nanofluid model proposed by Buongiomo. The transformed dimensionless partial differential equations have been solved using a second-order accurate finite-difference technique. The results indicate that inclusion of nanoparticles into pure water changes the flow structure at low values of the Rayleigh number. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：182 / 190

页数：9

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