Magnetohydrodynamic Peristaltic flow of a couple stress with heat and mass transfer of a Jeffery fluid in a tube through porous medium

Dheia G. Salih Al-Hhafajy, Ahmed Abdulhadi


The effects couple stress on the unsteady flow of a couple stress fluid an incompressible non­­­-Newtonian (Jeffrey) fluid through porous medium have been discussed. The thermal diffusion thermo effect are taken to our consideration. Analytical expression for the axial velocity, stream function and axial pressure gradient are established. The flow is investigated in a wave frame of reference moving with the velocity of the wave. The non­­-linear partial differential equations which govern this problem are simplified by making the assumptions of long wave length approximation. The analytical formula of the velocity and temperature have been obtained in terms of Bessel function of first and second kinds. In addition, it has been illustrated graphically for significant various parameters such as, magnetic parameter, couple stress parameter, permeability parameter, and thermal parameters .

Keywords ­: Magnetohydrodynamic, Peristaltic, couple stress fluid, Heat transfer, Porous medium.

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ISSN (Paper)2224-719X ISSN (Online)2225-0638

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