A fractal model for predicting the effective thermal conductivity of liquid with suspension of nanoparticles

被引：729

作者：

Wang, BX ^{[1
]}

Zhou, LP ^{[1
]}

Peng, XF ^{[1
]}

机构：

[1] Tsing Hua Univ, Dept Thermal Engn, Beijing 100084, Peoples R China

来源：

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 2003年 / 46卷 / 14期

关键词：

effective thermal conductivity; nanoparticles; clustering; fractal model; surface adsorption; size effect;

D O I：

10.1016/S0017-9310(03)00016-4

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Based on the effective medium approximation and the fractal theory for the description of nanoparticle cluster and its radial distribution, a method for modeling the effective thermal conductivity of "nanofluid" is established. The size effect and the surface adsorption of nanoparticles are taken into considerations. The proposed fractal model is discussed in detail for its application, and it predicts quite well with our recent measuring data for dilute suspensions of metallic oxide nanoparticles. (C) 2003 Elsevier Science Ltd. All rights reserved.

引用

页码：2665 / 2672

页数：8

共 27 条

[1]

ADAMSON AW, 1990, PHYSICAL CHEM SURFAC

[2]

[Anonymous], 2002, ANN P CHINESE ENG TH

[3]

[Anonymous], 1892, PHILOS MAG, DOI DOI 10.1080/14786449208620364

[4] Calculation of various physics constants in heterogenous substances I Dielectricity constants and conductivity of mixed bodies from isotropic substances [J].

Bruggeman, DAG .

ANNALEN DER PHYSIK, 1935, 24 (07) :636-664

[5]

CARSLAW HS, 1959, CONDUCTION HEAT SOLI, P112

[6] Nonlocal and nonequilibrium heat conduction in the vicinity of nanoparticles [J].

Chen, G .

JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME, 1996, 118 (03) :539-545

[7] Particularities of heat conduction in nanostructures [J].

Chen, Gang .

JOURNAL OF NANOPARTICLE RESEARCH, 2000, 2 (02) :199-204

[8] STRONGLY NONLINEAR RESPONSE OF FRACTAL CLUSTERS [J].

CHOY, TS ;

YU, KW .

PHYSICAL REVIEW B, 1995, 52 (05) :3341-3345

[9] DIELECTRIC-CONSTANT OF A COMPOSITE INHOMOGENEOUS-MEDIUM [J].

CHYLEK, P ;

SRIVASTAVA, V .

PHYSICAL REVIEW B, 1983, 27 (08) :5098-5106

[10] DIELECTRIC-CONSTANT OF POLARIZABLE, NONPOLAR FLUIDS AND SUSPENSIONS [J].

CICHOCKI, B ;

FELDERHOF, BU .

JOURNAL OF STATISTICAL PHYSICS, 1988, 53 (1-2) :499-521

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