IJSER Home >> Journal >> IJSER
International Journal of Scientific and Engineering Research
ISSN Online 2229-5518
ISSN Print: 2229-5518 8    
Website: http://www.ijser.org
scirp IJSER >> Volume 3,Issue 8,August 2012
Unsteady MHD mixed convection flow of a viscous dissipating micropolar fluids in a boundary layer slip flow regime with Joule heating
Full Text(PDF, )  PP.I06-111  
Author(s)
A. A. Bakra, Z. A. S. Raizah
KEYWORDS
Heat and mass transfer; Hall effects; Chemical reaction; Heat generation; Thermal diffusion; Thermal radiation;micropolar fluid.
ABSTRACT
Simultaneous heat and mass transfer in unsteady free convection flow with thermal radiation and thermal diffusion past an impulsively started infinite vertical porous plate subjected to a strong magnetic field is presented. The dimensionless governing equations for this investigation are solved analytically using two terms harmonic and non-harmonic functions. The influence of various parameters on the convectively cooled or convectively heated plate in the laminar boundary layer are established. An analysis of the effects of the parameters on the concentration, velocity and temperature profiles, as well as skin friction and the rates of mass and heat transfer is done with the aid of graphs and tables.
References
[1] Singh KR, Cowling TG, Thermal convection magnetohydrodynamics, Q. J. Mech. Appl. Math., 16 (1963) 1-15.

[2] Bhargava R, Takhar HS. Numerical study of heat transfer characteristics of the micropolar boundary layer near a stagnation point on a moving wall, Int J Eng Sci, 38 (2000) 383-94.

[3] Eringen AC.Theory of micropolar fluids,J.Math. Mech.,16 (1964)1-18.

[4] Sharma PK,Chaudhury RC,Effect of variable suction on transient flow convective viscous incompressible flow past a vertical plate with periodic temperature variations in slip flow regime, J. Eng Sci,8(2003)33-38.

[5] Hayat T, Abbas Q, Asghar S, Siddiqui AM, Farid T, Murtaza G. Flow of an elastico-viscous fluid past an infinite wall with time-dependent suction, Acta Mech, 153 (2002) 133-45.

[6] Hayat T, Abbas Q, Khan M, Siddiqui AM. NonNewtonian flows over an oscillating plate with variable suction, Arch Mech, 55 (2003) 32744.

[7] Sahin A. Influence of chemical reaction on transient MHD free convection flow over a vertical plate in slip-flow regime, Emirates J Eng Res , 15 (2010) 2534.

[8] Hayat T, Nadeem S, Pudasaini SP, Asghar S. Fluctuating flow of a third-order fluid past an infinite plate with variable suction, Arch Mech, 55 (2003) 305-24.

[9] Sharma PK. Influence of periodic temperature and concentration on unsteady free convection viscous incompressible flow and heat transfer past a vertical plate in slip flow regime, Mathematicas, XIII (2005) 51-62.

[10] Muthucumarswamy R, Ganesan P. Effect of chemical reaction and injection on flow characteristics in an unsteady upward motion of an isothermal plate, J Appl Mech Tech Phys, 42 (2001) 665-71.

[11] Chamkha AJ. MHD flow of uniformly stretched vertical permeable surface in the presence of heat generation/absorption and a chemical reaction, Int Commun Heat Mass Transf, 30 (2003) 413-22.

[12] Raptis A, Perdikis C. viscous flow over a non-linearly stretching sheet in the presence of a chemical reaction and magnetic field, Int J Non-linear Mech, 41 (2006) 52-79.

[13] F. S. Ibrahim , A. M. Elaiw and A. A. Bakr, Effect of the chemical reaction and radiation absorption on the unsteady MHD free convection flow past a semi infinite vertical permeable moving plate with heat source and suction, Communications in Nonliner Sci. and Numerical Simulation, 13 (2008) 1056.

[14] Ghaly AY, Seddeek MA. Chebyshev finite difference method for the effect of chemical reaction, heat and mass transfer on laminar flow along a semiinfinite horizontal plate with temperature dependent viscosity, Choas Solitons Fract, 19 (2004) 6170.

[15] A A Bakr, Effects of chemical reaction on MHD free convection and mass transfer flow of a micropolar fluid with oscillatory plate velocity and constant heat source in a rotating frame of reference , Commun Nonlinear Sci Numer Simulat, 16 (2011) 698710.

[16] Pal D, Talukdar B. Buoyancy and chemical reaction effects on MHD mixed convection heat and mass transfer in a porous medium with thermal radiation and Ohmic heating, Commun Nonlinear Sci Numer Simul, 15 (2010) 287893.

[17] Alam MS, Rahman MM, Sattar MA. MHD free convection heat and mass transfer past a moving vertical porous plate, Int Commun Heat Mass Transf, 32 (2005)14119.

Untitled Page