scholarly journals Unsteady MHD Free Convection and Mass Transfer Flow Through a Vertical Oscillatory Porous Plate in a Rotating Porous Medium with Hall, Ion-slip Currents and Heat Source

2016 ◽  
Vol 64 (2) ◽  
pp. 91-98
Author(s):  
Md Delowar Hossain ◽  
Md Abdus Samad ◽  
Md Mahmud Alam
Keyword(s):  
Viscous Incompressible Fluid ◽  
Perturbation Technique ◽  
Porous Plate ◽  
Concentration Field ◽  
Harmonic Oscillation ◽  
Governing Equations ◽  
Electrically Conducting ◽  
Ion Slip ◽  
Flow Through ◽  
Transfer Flow

The analytical solution is made on the unsteady flow of an electrically conducting viscous incompressible fluid bounded by an infinite vertical porous plate. The plate executes harmonic oscillation at a frequency n in its own plane. The governing equations of the problem contain coupled partial differential equations. The dimensionless equations are solved analytically using perturbation technique. The effect of various parameters of the problem on the velocity, temperature and concentration field within the boundary layer are discussed and shown graphically. Dhaka Univ. J. Sci. 64(2): 91-98, 2016 (July)

scholarly journals Hall and Ion Slip Influence on Mixed Convective Magnetohydrodynamic Oscillatory Flow through a Permeable Medium in Presence of Thermal Diffusion

2020 ◽  
Vol 6 (11) ◽  
pp. 26-33
Author(s):  
S. Aiswarya
Keyword(s):  
Oscillatory Flow ◽  
Perturbation Technique ◽  
Porous Plate ◽  
Electrically Conducting ◽  
Vertical Porous Plate ◽  
Linear Partial Differential Equations ◽  
Electrically Conducting Fluid ◽  
Ion Slip ◽  
Dimensional Parameters ◽  
Flow Through

The aim of this study is to analyze the effect of Hall and ion slip on viscous incompressible electrically conducting fluid bounded by a vertical porous plate in the presence of chemical reaction and thermal radiation subject to oscillatory suction. The resulting coupled non-linear partial differential equations are solved analytically by applying perturbation technique. The influences of various non-dimensional parameters on velocity, temperature and concentration profiles were discussed numerically.

Hall and Ion Slip Influence on Mixed Convective Magnetohydrodynamic Oscillatory Flow through a Permeable Medium in Presence of Thermal Diffusion

2020 ◽  
Vol 6 (11) ◽  
pp. 26-33
Author(s):  
S. Aiswarya
Keyword(s):  
Oscillatory Flow ◽  
Perturbation Technique ◽  
Porous Plate ◽  
Electrically Conducting ◽  
Vertical Porous Plate ◽  
Linear Partial Differential Equations ◽  
Electrically Conducting Fluid ◽  
Ion Slip ◽  
Dimensional Parameters ◽  
Flow Through

The aim of this study is to analyze the effect of Hall and ion slip on viscous incompressible electrically conducting fluid bounded by a vertical porous plate in the presence of chemical reaction and thermal radiation subject to oscillatory suction. The resulting coupled non-linear partial differential equations are solved analytically by applying perturbation technique. The influences of various non-dimensional parameters on velocity, temperature and concentration profiles were discussed numerically.

scholarly journals Viscous Dissipation and Dufour Effects on MHD Free Convection Flow Through an Oscillatory Inclined Porous Plate with Hall and Ion-Slip Current

2018 ◽  
Vol 7 (4.5) ◽  
pp. 410 ◽  
Author(s):  
K. V. B. Raja kumar ◽  
K. S. Balamurugan ◽  
Ch. V. Ramana Murthy ◽  
N. Ranganath
Keyword(s):  
Viscous Dissipation ◽  
Porous Plate ◽  
Convection Flow ◽  
Governing Equations ◽  
Inclined Plate ◽  
Regular Perturbation ◽  
Rotating System ◽  
Free Convection Flow ◽  
Ion Slip ◽  
Flow Through

In this paper the viscous dissipation and Dufour effects on Unsteady MHD free convective flow through a semi-infinite Oscillatory porous inclined plate of time dependent permeability with Chemical reaction and Hall and Ion-Slip Current in a Rotating System was investigated. The dimensionless governing equations for this investigation are solved analytically by using multiple regular perturbation law. The effects of different parameters on velocity, temperature and concentration fields are shown graphically.  

Relative Study on the Incompressible Fluid Flow Past a Porous Plate with and Without the Radiation Effect

2018 ◽  
Vol 7 (4.10) ◽  
pp. 653
Author(s):  
R. Kuzhali ◽  
R. Dharani
Keyword(s):  
Incompressible Fluid ◽  
Radiation Effect ◽  
Viscous Incompressible Fluid ◽  
Perturbation Technique ◽  
Porous Plate ◽  
Three Dimensional ◽  
Approximate Solutions ◽  
Temperature Fields ◽  
Incompressible Fluid Flow ◽  
Governing Equations

This paper focuses to compare the main flow velocity and temperature distribution in a three dimensional magneto hydrodynamic flow of a viscous incompressible fluid, past a vertical porous plate subjected to a periodic suction with and without the radiation effect. Governing equations are solved using perturbation technique and the results are discussed, on the results of the approximate solutions for velocity and temperature fields. 

scholarly journals Permeability impact on electromagnetohydrodynamic flow through corrugated walls of microchannel with variable viscosity

2020 ◽  
Vol 12 (7) ◽  
pp. 168781402094433 ◽  
Author(s):  
Madhia Rashid ◽  
Sohail Nadeem ◽  
Iqra Shahzadi
Keyword(s):  
Phase Difference ◽  
Hartmann Number ◽  
Variable Viscosity ◽  
Perturbation Technique ◽  
Three Dimensional ◽  
Velocity Slip ◽  
Temperature Profiles ◽  
Governing Equations ◽  
Electrically Conducting ◽  
Flow Through

This investigation based on electromagnetohydrodynamic flow in microchannels through lightly corrugated walls effects is reported in the presence of variable liquid properties. In microparallel plates, we consider incompressible and electrically conducting viscous fluid. With small amplitudes, the wall corrugations are described by periodic sin waves. The governing equations are rendered dimensionless and solved with the help of the perturbation technique. The analytical solutions for velocity are obtained and analyzed graphically. A connection between flow rate and roughness is acquired by perturbation solutions of the stream function. By utilizing numerical computations, we analyzed the corrugation consequences on the velocity for electromagnetohydrodynamic flow. We graphically clarified the velocity and temperature profiles and their dependencies on all parameters. The three-dimensional velocity and contour distributions shown that the wall roughness can cause changes in the velocity distribution. For in phase the phase difference among the two corrugated walls is equals to 0°, and for out of phase the phase difference is equal to 180° between the two walls. The wave phenomenon of the flow shape becomes obvious with the expansion of the corrugation. The electromagnetohydrodynamic velocities first grow and then reduce. The electromagnetohydrodynamic velocity increases for Reynolds number, Hartmann number, and Darcy parameter. Velocity profile decreases for variable viscosity, velocity slip parameter.

scholarly journals Effects of Unsteady Free Convective MHD Non-Newtonian Flow Through a Porous Medium Bounded by an Infinite Inclined Porous Plate

2010 ◽  
Vol 9 (2) ◽  
pp. 6-20
Author(s):  
N. Ananda Reddy ◽  
M. C. Raju ◽  
S. Vijay Kumar Varma
Keyword(s):  
Magnetic Field ◽  
Porous Medium ◽  
Perturbation Technique ◽  
Porous Plate ◽  
Sink Strength ◽  
Solution Rate ◽  
Electrically Conducting ◽  
Constant Suction ◽  
Permeability Parameter ◽  
Flow Through

The problem of unsteady free convective MHD incompressible electrically conducting non-Newtonian fluid through porous medium bounded by on infinite inclined porous plate in the presence of constant suction and absorbing sinks is presented. Uniform magnetic field is applied normal to the plate. The equations governing the fluid flow have been solved using multi-parameter perturbation technique, subject to the relevant boundary conditions. It is noted that the velocity of the fluid and skin friction ore increased as permeability parameter and angle of inclination increases, whereas reverse phenomenon is observed in case of magnetic field strength and sink strength. Velocity and temperature are greater for mercury than that of electrolytic solution. Rate of heat transfer decreases with increase in the sink strength. The results ore discussed through graphs and tables.

Unsteady MHD Free Convective Heat and Mass Transfer Flow Past a Vertical Porous Plate in the Presence of Radiation and Chemical Reaction

2017 ◽  
Vol 6 (10) ◽  
pp. 116
Author(s):  
J. Buggaramulu ◽  
M. Venkatakrishna ◽  
Y. Harikrishna
Keyword(s):  
Mass Transfer ◽  
Heat And Mass Transfer ◽  
Convective Heat ◽  
Chemical Reaction ◽  
Porous Plate ◽  
Physical Parameters ◽  
Governing Equations ◽  
Vertical Porous Plate ◽  
Flow Past ◽  
Transfer Flow

The objective of this paper is to analyze an unsteady MHD free convective heat and mass transfer boundary flow past a semi-infinite vertical porous plate immersed in a porous medium with radiation and chemical reaction. The governing equations of the flow field are solved numerical a two term perturbation method. The effects of the various parameters on the velocity, temperature and concentration profiles are presented graphically and values of skin-frication coefficient, Nusselt number and Sherwood number for various values of physical parameters are presented through tables.

scholarly journals Conducting dusty fluid flow through a constriction in a porous medium

2016 ◽  
Vol 5 (1) ◽  
pp. 29
Author(s):  
Madhura K R ◽  
Uma M S
Keyword(s):  
Porous Medium ◽  
Hartmann Number ◽  
Equations Of Motion ◽  
Fluid Phase ◽  
Dust Particles ◽  
Governing Equations ◽  
Electrically Conducting ◽  
Electrically Conducting Fluid ◽  
Flow Through ◽  
Constricted Channel

<p><span lang="EN-IN">The flow of an unsteady incompressible electrically conducting fluid with uniform distribution of dust particles in a constricted channel has been studied. The medium is assumed to be porous in nature. The governing equations of motion are treated analytically and the expressions are obtained by using variable separable and Laplace transform techniques. The influence of the dust particles on the velocity distributions of the fluid are investigated for various cases and the results are illustrated by varying parameters like Hartmann number, deposition thickness on the walls of the cylinder and the permeability of the porous medium on the velocity of dust and fluid phase.</span></p>

scholarly journals Chemical Impact on Heat and Mass Transfer Flow in Presence of Radiation and Rotation with Variable Temperature and Concentration

2019 ◽  
Vol 8 (4) ◽  
pp. 1966-1970
Keyword(s):  
Mass Transfer ◽  
Variable Temperature ◽  
Equations Of Motion ◽  
Porous Plate ◽  
Chemical Species ◽  
Viscous Drag ◽  
Electrically Conducting ◽  
Electrically Conducting Fluid ◽  
Transfer Flow ◽  
Chemical Reaction Parameter

A parametric study to investigate the effect of chemical reaction parameter on an MHD mixed convective mass transfer flow of an incompressible viscous electrically conducting fluid past an infinite vertical porous plate. The equations of motion are work out by assuming Laplace Transform approach. The velocity profile, temperature, concentration, viscous drag, Nusselt number and the rate of mass transfer are discussed graphically by assuming some arbitrary criterion given in the present paper and physical descriptions are made. It is emphasized from the graphical portion that chemical species retards the fluid flow

Sign in / Sign up

Export Citation Format

Share Document