Influence of Slip and Heat and Mass Transfer Effects on Peristaltic motion of Power-law fluid Prone to the Tube

The thermal-diffusion and diffusion-thermo effects on heat and mass transfer by magnetohydrodynamic (MHD) mixed convection stagnation-point flow of a power-law non-Newtonian fluid towards a stretching surface in the presence of a magnetic field, thermal radiation and homogenous chemical reaction effects have been studied. A suitable set of dimensionless variables is used and similar equations governing the problem are obtained. The resulting equations have the property that they reduce to various special cases previously considered in the literature. An adequate implicit tri-diagonal finite-difference scheme is employed for the numerical solution of the obtained equations. Various comparisons with previously published work are performed and the results are found to be in excellent agreement. Representative results for the velocity, temperature, and concentration profiles as well as the local skin-friction coefficient, the local Nusselt number and the local Sherwood number illustrating the influence of the magnetic parameter, power-law fluid index, mixed convection parameter, concentration to thermal buoyancy ratio, thermal radiation, chemical reaction, and Dufour and Soret numbers are presented and discussed.

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Dufour and Soret Effects on MHD Forced Convective Heat and Mass Transfer Flow of Non-Newtonian Power Law Fluid with Thermal Radiation and Viscous Dissipation

American Journal of Applied Mathematics ◽

10.11648/j.ajam.20160406.16 ◽

2016 ◽

Vol 4 (6) ◽

pp. 296

Author(s):

Chinmayee Podder

Keyword(s):

Mass Transfer ◽

Thermal Radiation ◽

Heat And Mass Transfer ◽

Viscous Dissipation ◽

Convective Heat ◽

Power Law ◽

Power Law Fluid ◽

Transfer Flow

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Convection Heat and Mass Transfer in a Power Law Fluid with Non Constant Relaxation Time Past a Vertical Porous Plate in the Presence of Thermo and Thermal Diffusion

Journal of Theoretical and Applied Mechanics ◽

10.2478/v10254-012-0020-1 ◽

2012 ◽

Vol 42 (4) ◽

pp. 53-74 ◽

Cited By ~ 1

Author(s):

B. I. Olajuwon ◽

I. S. Oyelakin

Keyword(s):

Heat Transfer ◽

Mass Transfer ◽

Relaxation Time ◽

Differential Equations ◽

Heat And Mass Transfer ◽

Power Law ◽

Porous Plate ◽

Convection Heat ◽

Power Law Fluid ◽

Vertical Porous Plate

Abstract The paper investigates convection heat and mass transfer in power law fluid flow with non relaxation time past a vertical porous plate in presence of a chemical reaction, heat generation, thermo diffu- sion and thermal diffusion. The non - linear partial differential equations governing the flow are transformed into ordinary differential equations using the usual similarity method. The resulting similarity equations are solved numerically using Runge-Kutta shooting method. The results are presented as velocity, temperature and concentration profiles for pseudo plastic fluids and for different values of parameters governing the prob- lem. The skin friction, heat transfer and mass transfer rates are presented numerically in tabular form. The results show that these parameters have significant effects on the flow, heat transfer and mass transfer.

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