CFP last date
20 December 2024
Call for Paper
January Edition
IJCA solicits high quality original research papers for the upcoming January edition of the journal. The last date of research paper submission is 20 December 2024

Submit your paper
Know more
The week's pick
Responsive image
Improved Shuffled Frog Leaping Algorithm with Self-Adaptive Shuffling for Fuzzy Logic PD+G Controller Optimization in Robotic Manipulators

Duc Hoang Nguyen
Random Articles
Reseach Article

Effects of Variable Viscosity and Thermal Conductivity on Unsteady Free Convective Heat and Mass Transfer MHD Flow of Micropolar Fluid with Constant Heat Flux through a Porous Medium

by Parash Moni Thakur, G. C. Hazarika
journal cover thumbnail

International Journal of Computer Applications
Foundation of Computer Science (FCS), NY, USA
Volume 110 - Number 8
Year of Publication: 2015
Authors: Parash Moni Thakur, G. C. Hazarika
10.5120/19338-0900

Parash Moni Thakur, G. C. Hazarika . Effects of Variable Viscosity and Thermal Conductivity on Unsteady Free Convective Heat and Mass Transfer MHD Flow of Micropolar Fluid with Constant Heat Flux through a Porous Medium. International Journal of Computer Applications. 110, 8 ( January 2015), 20-30. DOI=10.5120/19338-0900

@article{ 10.5120/19338-0900,
author = { Parash Moni Thakur, G. C. Hazarika },
title = { Effects of Variable Viscosity and Thermal Conductivity on Unsteady Free Convective Heat and Mass Transfer MHD Flow of Micropolar Fluid with Constant Heat Flux through a Porous Medium },
journal = { International Journal of Computer Applications },
issue_date = { January 2015 },
volume = { 110 },
number = { 8 },
month = { January },
year = { 2015 },
issn = { 0975-8887 },
pages = { 20-30 },
numpages = {9},
url = { https://ijcaonline.org/archives/volume110/number8/19338-0900/ },
doi = { 10.5120/19338-0900 },
publisher = {Foundation of Computer Science (FCS), NY, USA},
address = {New York, USA}
}
%0 Journal Article
%1 2024-02-06T22:45:50.784270+05:30
%A Parash Moni Thakur
%A G. C. Hazarika
%T Effects of Variable Viscosity and Thermal Conductivity on Unsteady Free Convective Heat and Mass Transfer MHD Flow of Micropolar Fluid with Constant Heat Flux through a Porous Medium
%J International Journal of Computer Applications
%@ 0975-8887
%V 110
%N 8
%P 20-30
%D 2015
%I Foundation of Computer Science (FCS), NY, USA
Abstract

The effects of temperature dependent viscosity and thermal conductivity on magneto-hydrodynamic unsteady free convective heat and mass transfer flow of an incompressible micropolar fluid through a porous medium along an infinite vertical plate is studied. A magnetic field of uniform strength is assumed to be applied which makes an angle ? with the plane transverse to the direction of the main flow. A similarity parameter ? has been introduced and the suction velocity is considered to be inversely proportional to this time dependent parameter. The partial differential equations governing the flow, heat and mass transfer of the problem are transformed into dimensionless form of ordinary differential equations by using similarity substitutions. The governing boundary value problems are then solved numerically using Runge-Kutta shooting method. The effects of various parameters, viz. viscosity parameter, thermal conductivity parameter, mass transfer parameter, coupling constant parameter, Grashoff number, Prandtl number, Schmidt number and magnetic parameter on velocity, secondary velocity, micro-rotation, temperature and concentration field are obtained and presented graphically. The Skin-friction, Nusselt number and Sherwood number are also computed and presented in table.

References
  1. Eringen A. C. , Theory of micropolar fluids, J. Math. Mech. , Vol. 16, (1966), pp. 1-18.
  2. Gorla R. S. R. , Takhar H. S. , Slaouti A. , Magneto hydrodynamic free convection boundary layer flow of a thermo micropolar fluid over a vertical plate, Int. J. Eng. Sci. , Vol. 36(1998) pp. 315-327.
  3. Lai F. C. and Kulacki F. A. , The effect of variable viscosity on convective heat and mass transfer along a vertical surface in saturated porous medium, Int. J. Heat and Mass Transfer, Vol. 33(1991) pp. 1028-1031.
  4. Katagiri M. , The Effect of Hall Currents on the Magneto hydrodynamic Boundary Layer Flow past a Semi-infinite Flat Plate, Journal of the Physical Society of Japan, Vol. 27, No 4(1969), pp. 1051-1059.
  5. Hossain M A, Effect of Hall Current on Unsteady Hydro magnetic Free-convection Flow near an Infinite Vertical Porous Plate, Journal of the Physical Society of Japan, Vol. 55, No. 7 (1986), pp. 2183-2190.
  6. Sattar M. A. and Hossain M. M. , Unsteady Hydromegnetic free convection flow with hall current and mass Transfer along an accelerated porous Plate with Time Dependent Temperature and Concentration, Can. J. Phy. , Vol. 70,pp 369-374, 1992.
  7. Sattar M. A. Rahman, M. M and Alam, M. M. , Free convection flow heat Transfer through a porous vertical Plate immersed in a porous medium with variable suction, J. Energy Heat And Mass Transfer, Vol. 22, pp 17-21, 2000.
  8. Sarma U. , Hazarika G. C. , Effects of variable viscosity and thermal conductivity on combined free-forced convection and mass transfer flow passed a vertical porous plate, Antarctica J. Math. , Vol. 7, No. 4 (2010), pp. 461-472.
  9. Sarma U. , Hazarika G. C. , Effects of variable viscosity and thermal conductivity on free convective heat and mass transfer flow with constant heat flux through a porous medium, J. Comp. & Math. Sci. , Vol. 1, No. 2 (2010), pp. 163-170.
  10. Schlichting H. , Boundary layer Theory, 6th Edn. , McGraw-Hill, New York, 1968.
  11. Shercliff J. A. , A textbook of magneto hydrodynamics, pergamon press inc. , New York, 1965.
Index Terms

Computer Science
Information Sciences

Keywords

Micropolar fluid variable viscosity thermal conductivity heat and mass transfer MHD Flow Hall Current

Powered by PhDFocusTM