 | Viscous fluid |
 |
 | Unsteady Flow of a Dusty Incompressible Fluid between Two Parallel Plates under an Impulsive Pressure Gradient
Author : Ramacharyulu, Pattabhi ;Prasad, V.V. Ramana
Source : Defence Science Journal ; Vol:30(3) ; 1980 ; pp 125-130
Subject : 532 Fluid Mechanics;532.542 Fluid Dynamics
Keywords : Dust particles ;Viscous fluid
Abstract : In the present investigation, an attempt is made to study the unsteady flow or an incompressible viscous fluid with uniform distribution of dust particles between two parallel plates under an impulsive pressure gradient. Analytical expressions for velocities of the fluid and the dust particles have been obtained. The variation of total fluxes for fluid and dust particles has been discussed. The influence on skin friction has been noticed. |
| | Hydromagnetic Flow between Two Rotating Coaxial Discs
Author : Khan, Abdul Aleem
Source : Defence Science Journal ; Vol:20(1) ; 1970 ; pp 53-58
Subject : 532.542 Fluid Dynamics
Keywords : Viscous fluid ;Coaxial rotating discs;Steady flow
Abstract : This paper relates to the steady flow of an electrically incompressible viscous fluid between two parallel coaxial rotating discs with a transverse magnetic field when the discs are rotating in the same direction with the same velocity and there is a source at the centre. |
| | A Note on the Temperature Distribution in a Porous Annulus
Author : Gaur, Y.N.
Source : Defence Science Journal ; Vol:26(2) ; 1976 ; pp 93-96
Subject : 532.542 Fluid Dynamics
Keywords : Viscous fluid;Laplace transform technique
Abstract : Unsteady temperature distribution for flow of an incompressible viscous fluid in a porous annulus has been investigated under the assumption that the rate of injection of the fluid at the inner cylinder is equal to the rate of suction of the fluid at the outer one. Viscous dissipation has been neglected while rate of heat generation in the fluid has been accounted for. An expression for the temperature distribution has been obtained using Laplace transform technique and taking the temperatures of the boundaries to be functions of time. |
| | Start up Flow with Velocity slip in the Entrance Region of a Porous Circular Tube Start up Flow with Velocity slip in the Entrance Region of a Porous Circular Tube
Author : Rajvanshi, S.C. ;Prakash, Om
Source : Defence Science Journal ; Vol:30(1) ; 1980 ; pp 1-8
Subject : 532 Fluid Mechanics;532.542 Fluid Dynamics
Keywords : Fluid injection ;Velocity profile;Viscous fluid
Abstract : Suddenly started laminar flow of an incompressible viscous fluid in the entrance region of a porous circular tube is studied analytically, taking into account the tangential velocity slip at its surface. Adopting a similarity velocity profile of the form of nth.degree parabola in the boundary layer, the integrated forms of the equations of continuity, momentum and energy are solved by the method of characteristics. The entry length is seen reduced by the fluid injection across the wall of the tube and increased by the tangential velocity slip at it. Both these factors are found increasing the start-up time required for the full development of the flow. |
|
