Unsteady flow of a viscous incompressible fluid past a porous plate with constant suction

1979 ◽  
Vol 29 (8) ◽  
pp. 859-862
Author(s):  
V. M. Soundalgekar ◽  
A. G. Uplekar
Keyword(s):  
Unsteady Flow ◽  
Incompressible Fluid ◽  
Viscous Incompressible Fluid ◽  
Porous Plate ◽  
Constant Suction

Unsteady Flow in a Porous Medium Between Two Infinite Parallel Plates in Relative Motion

1985 ◽  
Vol 107 (4) ◽  
pp. 534-535 ◽  
Author(s):  
V. M. Soundalgekar ◽  
H. S. Takhar ◽  
M. Singh
Keyword(s):  
Porous Medium ◽  
Approximate Solution ◽  
Unsteady Flow ◽  
Incompressible Fluid ◽  
Phase Angle ◽  
Viscous Incompressible Fluid ◽  
Parallel Plates ◽  
Phase Lead ◽  
Permeability Parameter ◽  
Transient Velocity

An approximate solution to the unsteady flow of a viscous incompressible fluid through a porous medium bounded by two infinite parallel plates, the lower one stationary and the upper one oscillating in its own plane, is presented here. Expressions for the transient velocity, the amplitude, the phase angle α and the skin-friction are derived and numerically calculated. It is observed that the amplitude increases with increasing σ, the permeability parameter, and ω, the frequency. Also, there is always a phase lead, and the phase angle α decreases with increasing σ.

scholarly journals Unsteady Flow Through a Porous Medium Due to Non-coaxial Rotations of a Porous Disk and a Fluid at Infinity Subjected to a Periodic Suction

2018 ◽  
Vol 23 (2) ◽  
pp. 401-411
Author(s):  
M. Guria
Keyword(s):  
Porous Medium ◽  
Velocity Field ◽  
Unsteady Flow ◽  
Incompressible Fluid ◽  
Closed Form ◽  
Viscous Incompressible Fluid ◽  
Shear Stresses ◽  
Porous Disk ◽  
Dimensional Parameters ◽  
Flow Through

Abstract The unsteady flow of a viscous incompressible fluid due to non-coaxial rotations of a porous disk and a fluid at infinity subjected to a periodic suction through a porous medium has been studied. The velocity field, shear stresses are obtained in closed form. The variations of primary and secondary velocities for different values of non dimensional parameters are depicted in figures.

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 Exact Solution for Unsteady Flow of Viscous Incompressible Fluid Over a Suddenly Accelerated Flat Plate (Stokes' First Problem) Using Laplace Transforms

2018 ◽  
Vol 7 (3.6) ◽  
pp. 267
Author(s):  
Spainborlang Kharchandy ◽  
. .
Keyword(s):  
Exact Solution ◽  
Unsteady Flow ◽  
Incompressible Fluid ◽  
Flat Plate ◽  
Stokes Equation ◽  
Viscous Incompressible Fluid ◽  
Laplace Transforms ◽  
Simple Approach ◽  
Navier Stokes ◽  
Navier Stokes Equation

With the Navier-Stokes Equation in Cartesian form (in absence of body forces), Laplace Transforms provides a simple approach towards solving the unsteady flow of a viscous incompressible fluid over a suddenly accelerated flat plate. On comparing the results between  Laplace Transforms and similarity methods, it reveals that Laplace Transforms is simple and effective.

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