Unsteady flow of an incompressible fluid in a horizontal porous medium with suction

1989 ◽  
Vol 13 (2) ◽  
pp. 225-229 ◽  
Author(s):  
A. R. Bestman
Keyword(s):  
Porous Medium ◽  
Unsteady Flow ◽  
Incompressible Fluid

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.

Global regularity for unsteady flow of MHD Sisko fluid in a porous medium

2016 ◽  
Vol 94 (12) ◽  
pp. 1297-1304 ◽  
Author(s):  
S. Rahman ◽  
T. Hayat ◽  
B. Ahmad
Keyword(s):  
Porous Medium ◽  
Unsteady Flow ◽  
Incompressible Fluid ◽  
Classical Solution ◽  
Homogeneous Space ◽  
Global Regularity ◽  
Classical Solutions ◽  
Main Interest ◽  
Sisko Fluid ◽  
Unidirectional Flow

The aim of the present paper is to establish the global regularity of classical solution for unidirectional flow of magnetohydrodynamic (MHD) Sisko fluid. The fluid is taken between two rigid plates. An incompressible fluid saturates the porous medium. The main interest in this paper is to establish the global regularity of classical solutions when [Formula: see text], [Formula: see text], and [Formula: see text] are sufficiently small. In addition, uniqueness of the classical solution is also verified. Here BMO denotes the homogeneous space of bounded mean oscillations, V is the velocity, u is the x-component of velocity, and [Formula: see text] is the vorticity.

Calculation of two-dimensional dispersion in a gas in unsteady flow in a porous medium

1983 ◽  
Vol 17 (5) ◽  
pp. 704-710
Author(s):  
E. G. Basanskii ◽  
V. M. Kolobashkin ◽  
N. A. Kudryashov
Keyword(s):  
Porous Medium ◽  
Unsteady Flow ◽  
Two Dimensional

Unsteady flow of nanofluid through porous medium with variable characteristics

2020 ◽  
Vol 119 ◽  
pp. 104904
Author(s):  
Tasawar Hayat ◽  
Farwa Haider ◽  
Ahmed Alsaedi ◽  
Bashir Ahmad
Keyword(s):  
Porous Medium ◽  
Unsteady Flow
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