MHD Convection Fluid and Heat Transfer in an Inclined Micro-Porous-Channel

被引:14
作者
Aina, Babatunde [1 ]
Malgwi, Peter Bukar [2 ]
机构
[1] Bingham Univ, Dept Math, Abuja, Nigeria
[2] Ahmadu Bello Univ, Dept Math, Zaria, Nigeria
来源
NONLINEAR ENGINEERING - MODELING AND APPLICATION | 2019年 / 8卷 / 01期
关键词
MHD; Inclined Micro-Porous-Channel; Velocity Slip; Temperature Jump;
D O I
10.1515/nleng-2018-0081
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
This study is devoted to investigate the influence of transverse magnetic field as well as suction/injection on MHD natural convection flow of conducting fluid in an inclined micro-porous-channel. The analytical solutions for velocity profile and temperature profile have been obtained considering the velocity slip and temperature jump conditions at the micro-porous-channel walls. The solution obtained for the velocity has been used to compute the skin friction, while the temperature has been used to compute the Nusselt number. The effect of various flow parameters entering into the problem are discussed with the aid of line graphs. Results reveal that the impact of inclination angle on fluid velocity is dependent on the value of the wall ambient temperature difference ratio, hence increase in inclination angle yields an enhancement in fluid velocity within the micro-porous-channel for some selected values of the wall ambient temperature difference ratio whereas it displays a dual character for other values. Also, injecting through the micro-porous channel thickens the thermal boundary layer, resulting to weakening the convective current and consequently decreasing the fluid velocity whereas suction weakens the thermal boundary layer yielding an increase in fluid velocity.
引用
收藏
页码:755 / 763
页数:9
相关论文
共 55 条
[1]   Magnetic field effect on blood flow of Casson fluid in axisymmetric cylindrical tube: A fractional model [J].
Ali, Farhad ;
Sheikh, Nadeem Ahmad ;
Khan, Ilyas ;
Saqib, Muhammad .
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2017, 423 :327-336
[2]   Application of Caputo-Fabrizio derivatives to MHD free convection flow of generalized Walters'-B fluid model [J].
Ali, Farhad ;
Saqib, Muhammad ;
Khan, Ilyas ;
Sheikh, Nadeem Ahmad .
EUROPEAN PHYSICAL JOURNAL PLUS, 2016, 131 (10)
[3]   Unsteady Magnetohydrodynamic Oscillatory Flow of Viscoelastic Fluids in a Porous Channel with Heat and Mass Transfer [J].
Ali, Farhad ;
Khan, Ilyas ;
Samiulhaq ;
Mustapha, Norzieha ;
Shafie, Sharidan .
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2012, 81 (06)
[4]  
Ali Farhad, 2017, J NONLINEAR SCI LE A, P101
[5]  
[Anonymous], 2017, J MOL LIQ, DOI [10.1016/j.molliq.2017.03.009, DOI 10.1016/J.MOLLIQ.2017.03.009]
[6]   Mixed convection in a vertical parallel plate microchannel [J].
Avci, Mete ;
Aydin, Orhan .
JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME, 2007, 129 (02) :162-166
[7]   Mixed Convection in a Vertical Microannulus Between Two Concentric Microtubes [J].
Avci, Mete ;
Aydin, Orhan .
JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME, 2009, 131 (01) :1-4
[8]   Natural convection slip flow in a vertical microchannel heated at uniform heat flux [J].
Buonomo, Bernardo ;
Manca, Oronzio .
INTERNATIONAL JOURNAL OF THERMAL SCIENCES, 2010, 49 (08) :1333-1344
[9]   THE EFFECTS OF BLOWING AND SUCTION ON FREE-CONVECTION BOUNDARY-LAYERS ON VERTICAL SURFACES WITH PRESCRIBED HEAT-FLUX [J].
CHAUDHARY, MA ;
MERKIN, JH .
JOURNAL OF ENGINEERING MATHEMATICS, 1993, 27 (03) :265-292
[10]  
Chauhan DS, 2012, J APPL SCI ENG, V15, P281