Brownian diffusion and thermophoresis mechanisms in Casson fluid over a moving wedge

被引：48

作者：

Ullah, Imran ^{[1
,2
]}

Shafie, Sharidan ^{[1
]}

Khan, Ilyas ^{[3
]}

Hsiao, Kai Long ^{[4
]}

机构：

[1] UTM, Dept Math Sci, Fac Sci, Johor Baharu 81310, Johor, Malaysia

[2] Natl Univ Sci & Technol, Dept Basic Sci, Islamabad 44400, Pakistan

[3] Majmaah Univ, Dept Basic Sci, Coll Engn, Majmaah 11952, Saudi Arabia

[4] Taiwan Shoufu Univ, Dept Digital Recreat & Game Design, 168 Nansh Li Dist, Tainan, Taiwan

来源：

RESULTS IN PHYSICS | 2018年 / 9卷

关键词：

Casson fluid; Magnetic field; Wedge; Brownian diffusion; Thermophoresis; Keller-box scheme; FORCED-CONVECTION FLOW; ROTATING VERTICAL CONE; MIXED CONVECTION; CHEMICAL-REACTION; NATURAL-CONVECTION; HEAT-GENERATION; MAGNETIC-FIELD; POROUS-MEDIUM; MICROPOLAR FLUID; MASS-TRANSFER;

D O I：

10.1016/j.rinp.2018.02.021

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The effect of Brownian diffusion and thermophoresis on electrically conducting mixed convection flow of Casson fluid induced by moving wedge is investigated in this paper. It is assumed that the wedge is saturated in a porous medium and experiences the thermal radiation and chemical reaction effects. The transformed nonlinear governing equations are solved numerically by Keller box scheme. Findings reveal that increase in Casson and magnetic parameters reduced the boundary layer thickness. The effect of Brownian motion and thermophoresis parameters are more pronounced on temperature profile as compared to nanoparticles concentration. The presence of thermal radiation assisted the heat transfer rate significantly. The influence of magnetic parameter is observed less significant on temperature and nanoparticles concentration. (C) 2018 Published by Elsevier B.V.

引用

页码：183 / 194

页数：12

共 32 条

[1] Similarity solutions for MHD thermosolutal Marangoni convection over a flat surface in the presence of heat generation or absorption effects [J].

Al-Mudhaf, A ;

Chamkha, AJ .

HEAT AND MASS TRANSFER, 2005, 42 (02) :112-121

[2] Convective transport in nanofluids [J].

Buongiorno, J .

JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME, 2006, 128 (03) :240-250

[3]

Cebeci T., 1988, Physical and computational aspects of convective heat transfer

[4] Natural convection from a vertical permeable cone in a nanofluid saturated porous media for uniform heat and nanoparticles volume fraction fluxes [J].

Chamkha, A. J. ;

Rashad, A. M. .

INTERNATIONAL JOURNAL OF NUMERICAL METHODS FOR HEAT & FLUID FLOW, 2012, 22 (08) :1073-1085

[5] Unsteady heat and mass transfer from a rotating vertical cone with a magnetic field and heat generation or absorption effects [J].

Chamkha, AJ ;

Al-Mudhaf, A .

INTERNATIONAL JOURNAL OF THERMAL SCIENCES, 2005, 44 (03) :267-276

[6]

Chamkha AJ, 2003, HEAT MASS TRANSFER, V39, P305, DOI [10.1007/S00231-002-0353-4, 10.1007/s00231-002-0353-4]

[7] Non-Darcy hydromagnetic free convection from a cone and a wedge in porous media [J].

Chamkha, AJ .

INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER, 1996, 23 (06) :875-887

[8]

Chamkha AJ, 2001, NUMER HEAT TR A-APPL, V39, P511, DOI 10.1080/104077801750111601

[9] MHD FORCED CONVECTION FLOW OF A NANOFLUID ADJACENT TO A NON-ISOTHERMAL WEDGE [J].

Chamkha, Ali J. ;

Rashad, A. M. .

COMPUTATIONAL THERMAL SCIENCES, 2014, 6 (01) :27-39

[10] Radiation effects on mixed convection about a cone embedded in a porous medium filled with a nanofluid [J].

Chamkha, Ali J. ;

Abbasbandy, S. ;

Rashad, A. M. ;

Vajravelu, K. .

MECCANICA, 2013, 48 (02) :275-285

← 1 2 3 4 →