ライブラリ登録: Guest
インパクトファクター: 1.49 5年インパクトファクター: 1.159 SJR: 0.43 SNIP: 0.671 CiteScore™: 1.58

ISSN 印刷: 1091-028X
ISSN オンライン: 1934-0508

# Journal of Porous Media

DOI: 10.1615/JPorMedia.v16.i5.50
pages 445-457

## MIXED CONVECTION BOUNDARY LAYER FLOW PAST A HORIZONTAL CIRCULAR CYLINDER EMBEDDED IN A POROUS MEDIUM SATURATED BY A NANOFLUID: BRINKMAN MODEL

L Tham
Universiti Malaysia Kelantan
Roslinda Nazar
School of Mathematical Sciences, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia
Ioan Pop
Department of Applied Mathematics, Babes-Bolyai University, 400084 Cluj-Napoca, Romania

### 要約

In this paper, the steady mixed convection boundary layer flow past a horizontal circular cylinder with a constant surface temperature and embedded in a porous medium saturated by a nanofluid in a stream flowing vertically upward has been studied by the Brinkman model for both cases of a heated and cooled cylinder. The resulting system of nonlinear partial differential equations is solved numerically using an implicit finite-difference scheme. Numerical results are obtained and discussed for the skin friction coefficient, the local Nusselt number, and the local Sherwood number, as well as the velocity, temperature, and nanoparticle volume fraction profiles, for various values of the governing parameters, namely, the mixed convection parameter, Darcy-Brinkman parameter, Lewis number, Brownian number, buoyancy ratio parameter, and thermophoresis parameter. From this study, it is found that the nanoparticle volume fraction improved the fluid-flow and heat-transfer characteristics.

### Articles with similar content:

Simultaneous Heat and Mass Transfer by Natural Convection from a Cone and a Wedge in Porous Media
Journal of Porous Media, Vol.3, 2000, issue 2
Osamah Al-Hawaj, Ali J. Chamkha, A.-R.A. Khaled
Transient Natural Convection in Differentially Heated Porous Enclosures
Journal of Porous Media, Vol.3, 2000, issue 2
A. A. Merrikh, A. A. Mohamad
STAGNATION-POINT FLOW OVER A STRETCHING/SHRINKING CYLINDER IN A ALUMINA-WATER NANOFLUID
ICHMT DIGITAL LIBRARY ONLINE, Vol.0, 2015, issue
Noor Syamimi Omar, Norfifah Bachok, Anuar Ishak, Norihan Md. Arifin
MAGNETOHYDRODYNAMIC FLOW AND HEAT TRANSFER TO SISKO NANOFLUID OVER A WEDGE
International Journal of Fluid Mechanics Research, Vol.44, 2017, issue 1
Naikoti Kishan, Cherlacola Srinivas Reddy, Madhu Macha
MIXED CONVECTION HEAT AND MASS TRANSFER IN A DOUBLY STRATIFIED MICROPOLAR FLUID
Computational Thermal Sciences: An International Journal, Vol.5, 2013, issue 4
D. Srinivasacharya, Chetteti RamReddy