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Unsteady MHD Micropolar Flow and Mass Transfer Past a Vertical Permeable Plate with Variable Suction

International Journal of Computer Applications
© 2011 by IJCA Journal
Volume 33 - Number 4
Year of Publication: 2011
M. M. Hamza
B.Y. Isah

H.Usman, M M Hamza and B Y Isah. Article: Unsteady MHD Micropolar Flow and Mass Transfer Past a Vertical Permeable Plate with Variable Suction. International Journal of Computer Applications 33(4):18-24, November 2011. Full text available. BibTeX

	author = {H.Usman and M. M. Hamza and B.Y. Isah},
	title = {Article: Unsteady MHD Micropolar Flow and Mass Transfer Past a Vertical Permeable Plate with Variable Suction},
	journal = {International Journal of Computer Applications},
	year = {2011},
	volume = {33},
	number = {4},
	pages = {18-24},
	month = {November},
	note = {Full text available}


This paper deals with the behavior of unsteady MHD Micropolar flow and Mass transfer past a vertical plate with variable suction. The resultant equations are solved analytically using Perturbation method. The analytical expressions for the velocity profiles, temperature profiles and concentration profiles of the fluid have been obtained with the help of the material parameters such as Grashof number G, Modified Grashof number Gm, Prandtl number Pr and Schmidt number Sc. Numerical computations involved in the solution have been shown on graphs using MAtlab soft ware. Results show that the velocity increases with an increase in Grashof and modified Grashof numbers, chemical reaction parameter and viscosity ratio respectively and decreases as a result of an increasing Magnetic number and time. The concentration profile decreases with an increasing chemical reaction parameter and Schmidt number. The temperature field increases with increasing time and decreases with an increasing Prandtl number, while the angular velocity decreases with an increase in Grashof and Modified Grashof numbers, time and epsilon respectively.


  • Azzam, G. E, (2002). MHD mixed free convection flow past a semi-infinite plate,physics scripts, vol.66; pp. 71.
  • Beg, O. B. and Gosh, S. K. (2009). Analytical study of MHD Radiation Convection with surface temperature oscillation and secondary flow effects, international journal of Applied Mathematics and Machinery, vol. 6(6); pp 1-22.
  • 3 Cookey, C. A., Ogolu, A. and Omubopepple, V. B, (2003). Influence of viscous dissipation and radiation on unsteady MHD free convection flow past an infinite heated vertical plate in a porous medium with time dependent suction, International journal of heat and mass transfer, vol.13; pp. 2305-2311.
  • 4 Kim, Y. J. (2001). Unsteady MHD micropolar flow and heat transfer over a vertical porous moving plate with variable suction. Proceedings of the 2nd International Conference on computational Heat and Mass transfer. COPPE/UFRJ.
  • 5 Makinde, O. D. and Mhone, P. Y. (2005). Effects of Heat transfer to MHD oscillatory flow in a channel filled with porous medium. ROM journal. Phys. (50): pp. 931-938.
  • 6 Mostafa, A.A. (2009). Thermal radiation effect on unsteady MHD free convection flow past a vertical plate with temperature dependent viscosity. The Canadian journal of chemical engineering, vol. 87(1); pp. 171-181.
  • 7 Okedoye, A. M., and Lamidi, O. T. (2009). Analytical solution of an unsteady flow past an Accelerated Vertical Porous plate with solution. Journal of Nigerian Mathematical Physics (JNAMP).vol. 15; pp. 501-512.
  • 8 Raptis, A. A., and Kafousias, N. (1982). Heat transfer in flow through a porous medium bounded by an infinite vertical plate under the action of a magnetic field. International journal Energy Research, 6(1982), 241-245.
  • 9 Siddheshwar, P.G. and Mahabaleshwar, U. S. (2005). Effects of Radiation and Heat sources on MHD flow of a visco-elastic liquid and Heat transfer over a stretching sheet. International journal of Non-linear Mechanics. Vol. 40; pp. 807-820.
  • 10 Singh, A. K. (2003). MHD free convection and mass transfer flow with Hall current, viscous dissipation, joule heating and thermal diffusion. Indian journal of pure applied physics, vol. 66, pp. 71.
  • 12 Soundalgekar, V. M. and Takher, H. S. (1977). MHD forced and free convective flow past a semi-infinite plate. AIAA. J. 15(1977), pp. 457-458.