Shape effects of spherical and nonspherical nanoparticles in mixed convection flow over a vertical stretching permeable sheet

被引：47

作者：

Ellahi, R. ^{[1
,2
]}

Hassan, M. ^{[3
]}

Zeeshan, A. ^{[1
]}

机构：

[1] IIUI, FBAS, Dept Math & Stat, Sect H10, Islamabad, Pakistan

[2] Univ Calif Riverside, Dept Mech Engn, Riverside, CA 92521 USA

[3] COMSATS Inst Informat Technol, Dept Math, Lahore, Pakistan

来源：

MECHANICS OF ADVANCED MATERIALS AND STRUCTURES | 2017年 / 24卷 / 15期

关键词：

Mixed convection; variable wall temperature; shape effects; interfacial layer; nanofluid; analytical solutions; THERMAL-CONDUCTIVITY ENHANCEMENT; PARTIAL-DIFFERENTIAL-EQUATIONS; HOMOTOPY ANALYSIS METHOD; NATURAL-CONVECTION; NANOFLUIDS; SUSPENSIONS; TRANSPORT; SURFACE; LAYER; FLUID;

D O I：

10.1080/15376494.2016.1232454

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this article, two-dimensional heat transfer mixed convection flow of a nanofluid over a vertical stretching permeable sheet is investigated. Simultaneous effects of spherical and nonspherical shapes of nanoparticles with different sizes in nanolayer are taken into account. The human engineered fluids with Nimonic 80a metal nanoparticles are used as base fluids. Analytic solutions of velocity and temperature under the influence of the Buoyancy force (assists or opposes) are first obtained and then the role of pertinent parameters, such as volume friction, mixed convection, porosity, stretching, power law index, and temperature index, is illustrated through graphs and tables. In addition, correlation of Nusselt number and skin friction corresponding to active parameters are also analyzed.

引用

页码：1231 / 1238

页数：8

共 46 条

[1] Effect of thermal dispersion on free convection in a fluid saturated porous medium [J].

Abbas, Ibrahim A. ;

El-Amin, M. F. ;

Salama, Amgad .

INTERNATIONAL JOURNAL OF HEAT AND FLUID FLOW, 2009, 30 (02) :229-236

[2]

[Anonymous], 2013, ADV HOMOTOPY ANAL ME

[3]

Choi S., 1995, DEV APPL NONNEWTONIA, V231, P99

[4] Anomalous thermal conductivity enhancement in nanotube suspensions [J].

Choi, SUS ;

Zhang, ZG ;

Yu, W ;

Lockwood, FE ;

Grulke, EA .

APPLIED PHYSICS LETTERS, 2001, 79 (14) :2252-2254

[5] Empirical correlation finding the role of temperature and particle size for nanofluid (Al2O3) thermal conductivity enhancement -: art. no. 153107 [J].

Chon, CH ;

Kihm, KD ;

Lee, SP ;

Choi, SUS .

APPLIED PHYSICS LETTERS, 2005, 87 (15) :1-3

[6] Temperature dependence of thermal conductivity enhancement for nanofluids [J].

Das, SK ;

Putra, N ;

Thiesen, P ;

Roetzel, W .

JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME, 2003, 125 (04) :567-574

[7] Application of semi-analytic methods for the Fitzhugh-Nagumo equation, which models the transmission of nerve impulses [J].

Dehghan, Mehdi ;

Heris, Jalil Manafian ;

Saadatmandi, Abbas .

MATHEMATICAL METHODS IN THE APPLIED SCIENCES, 2010, 33 (11) :1384-1398

[8] Solving Nonlinear Fractional Partial Differential Equations Using the Homotopy Analysis Method [J].

Dehghan, Mehdi ;

Manafian, Jalil ;

Saadatmandi, Abbas .

NUMERICAL METHODS FOR PARTIAL DIFFERENTIAL EQUATIONS, 2010, 26 (02) :448-479

[9] Anomalously increased effective thermal conductivities of ethylene glycol-based nanofluids containing copper nanoparticles [J].

Eastman, JA ;

Choi, SUS ;

Li, S ;

Yu, W ;

Thompson, LJ .

APPLIED PHYSICS LETTERS, 2001, 78 (06) :718-720

[10] Thermal transport in nanofluids [J].

Eastman, JA ;

Phillpot, SR ;

Choi, SUS ;

Keblinski, P .

ANNUAL REVIEW OF MATERIALS RESEARCH, 2004, 34 :219-246

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