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作者:

Lin, Yanhai (Lin, Yanhai.) | Li, Botong (Li, Botong.) | Zheng, Liancun (Zheng, Liancun.) | Chen, Goong (Chen, Goong.)

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Scopus SCIE

摘要:

This paper investigates Marangoni boundary layer flow and heat transfer of copper-water nanofluid driven by exponential temperature with radiation effects. Unlike most classical works, five different types of nanoparticle shapes are taken into account, i.e. sphere, hexahedron, tetrahedron, column and lamina. The temperature distribution on the liquid-liquid or liquid-gas interface is closer to the realistic situation by assuming that it is an exponential function with the axis length. Similarity transformation is applied to reduce the governing nonlinear partial differential equations into a set of nonlinear ordinary differential equations, which are solved numerically by the shooting method coupled with Newton's scheme and Runge-Kutta algorithm. The effects of solid volume fraction, radiation parameter and empirical shape factor on the dimensionless velocity and temperature fields and the local Nusselt number are graphically illustrated and discussed. It is found that the solid volume fraction and nanoparticle shape have significant impacts on the thermal conductivity and sphere nanoparticle has better enhancement on heat transfer than other nanoparticle shapes. (C) 2016 Elsevier B.V. All rights reserved.

关键词:

Heat transfer Marangoni boundary layer Thermal radiation Particle shape Nanofluid Exponential temperature

作者机构:

  • [ 1 ] [Lin, Yanhai]Huaqiao Univ, Sch Math Sci, Quanzhou 362021, Peoples R China
  • [ 2 ] [Li, Botong]Beijing Univ Technol, Coll Mech Engn, Beijing 100124, Peoples R China
  • [ 3 ] [Zheng, Liancun]Univ Sci & Technol Beijing, Sch Math & Phys, Beijing 100083, Peoples R China
  • [ 4 ] [Chen, Goong]Texas A&M Univ, Dept Math, College Stn, TX 77843 USA
  • [ 5 ] [Chen, Goong]Texas A&M Univ, Inst Quantum Sci & Engn, College Stn, TX 77843 USA

通讯作者信息:

  • [Lin, Yanhai]Huaqiao Univ, Sch Math Sci, Quanzhou 362021, Peoples R China

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来源 :

POWDER TECHNOLOGY

ISSN: 0032-5910

年份: 2016

卷: 301

页码: 379-386

5 . 2 0 0

JCR@2022

ESI学科: CHEMISTRY;

ESI高被引阀值:221

中科院分区:2

被引次数:

WoS核心集被引频次: 105

SCOPUS被引频次: 110

ESI高被引论文在榜: 0 展开所有

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