图书馆订阅: Guest
Begell Digital Portal Begell 数字图书馆 电子图书 期刊 参考文献及会议录 研究收集
国际多尺度计算工程期刊
影响因子: 1.016 5年影响因子: 1.194 SJR: 0.554 SNIP: 0.82 CiteScore™: 2

ISSN 打印: 1543-1649
ISSN 在线: 1940-4352

国际多尺度计算工程期刊

DOI: 10.1615/IntJMultCompEng.2017021952
pages 545-565

ENTROPY ANALYSIS OF UNSTEADY MAGNETOHYDRODYNAMIC NANOFLUID OVER STRETCHING SHEET WITH ELECTRIC FIELD

Yahaya Shagaiya Daniel
Department of Mathematical Sciences, Faculty of Science, Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor,Malaysia; UTM Centre for Industrial and Applied Mathematics (UTM-CIAM), Ibnu Sina Institute for Scientific and Industrial Research (ISI-SIR) Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor, Malaysia
Zainal Abdul Aziz
UTM Centre for Industrial and Applied Mathematics (UTM-CIAM), Ibnu Sina Institute for Scientific and Industerial Research (ISISIR), Universiti Teknologi Malaysia, 81310 Johor Bahru, Johor, Malaysia; Department of Mathematical Sciences, Faculty of Science, Universiti Teknologi Malaysia, 81310 Johor Bahru, Johor, Malaysia; MYHIMS Solutions PLT, Universiti Teknologi Malaysia, 81310 Johor Bahru, Johor, Malaysia
Zuhaila Ismail
Department of Mathematical Sciences, Faculty of Science, Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor,Malaysia; UTM Centre for Industrial and Applied Mathematics (UTM-CIAM), Ibnu Sina Institute for Scientific and Industrial Research (ISI-SIR) Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor, Malaysia
Faisal Salah
Department of Mathematics, Faculty of Science, University of Kordofan, Elobied, 51111, Sudan

ABSTRACT

This paper reports the unsteady magnetohydrodynamic (MHD) natural convection flow of nanofluid over a permeable stretching sheet with buoyancy effects. Effects of Brownian motion and thermophoresis using a revised model are present. Entropy and heat transfer analysis is performed in the presence of viscous dissipation, Joule heating, and chemical reaction. Transformations techniques are applied to the constituted governing boundary layer equations to obtain a nonlinear couple of ordinary differential systems. Thereafter, the Keller-Box numerical method is applied to solve the problem and excellent agreement was found with those reported in the literature. The results corresponding to the velocity, temperature, concentration profiles, entropy generation and Bejan numbers profiles, tabular form for the skin friction, and the reduced Nusselt number for various pertinent parameters are examined. As the main outcome, our results show that on the flow field magnetic and electric fields exhibit opposite behavior; Hartmann number, Reynolds number, dimensionless Brinkman group, constant entropy parameter, and dimensionless group parameter intensify with entropy generation. Furthermore, thermal radiation, electric field, and Hartmann number gain the Bejan number.


Articles with similar content:

MIXED CONVECTION FLOW OF PERMEABLE FLUID IN A VERTICAL CHANNEL IN THE PRESENCE OF FIRST-ORDER CHEMICAL REACTION: VARIABLE PROPERTIES
Special Topics & Reviews in Porous Media: An International Journal, Vol.9, 2018, issue 2
Syed Mohiuddin, Jawali C. Umavathi
ENTROPY ANALYSIS OF THERMALLY RADIATING MAGNETOHYDRODYNAMIC SLIP FLOW OF CASSON FLUID IN A MICROCHANNEL FILLED WITH SATURATED POROUS MEDIA
Journal of Porous Media, Vol.19, 2016, issue 9
Adetayo S. Eegunjobi, Oluwole Daniel Makinde
UNSTEADY MHD STAGNATION POINT FLOW OF PRANDTL NANOFLUID OVER AN EXPONENTIALLY STRETCHING/SHRINKING SHEET WITH SUCTION/INJECTION AND PARTIAL SLIP
Special Topics & Reviews in Porous Media: An International Journal, Vol.11, 2020, issue 6
Nabil T. M. Eldabe, Hameda M. Shawky, Kawther A. Kamel, Esmat A. Abd-Aziz
INFLUENCE OF JOULE HEATING AND THERMAL RADIATION ON UNSTEADY HYDROMAGNETIC FLOW OF CHEMICALLY REACTING CASSON FLUID OVER AN INCLINED POROUS STRETCHING SHEET
Special Topics & Reviews in Porous Media: An International Journal, Vol.10, 2019, issue 4
Challa Kalyan Kumar, Suripeddi Srinivas
EFFECT OF VISCOUS DISSIPATION ON MHD MIXED CONVECTIVE FLOW OVER A VERTICAL WEDGE EMBEDDED IN A POROUS MEDIUM WITH NONUNIFORM SLOT SUCTION OR INJECTION
Journal of Porous Media, Vol.19, 2016, issue 1
N. Samyuktha, R. Ravindran, M. Ganapathirao