On the pulsating flow superposed on the steady laminar motion of a second order viscous liquid between two parallel plates

1966 ◽  
Vol 16 (1) ◽  
pp. 361-379 ◽  
Author(s):  
N. Ch. Pattabhi Ramacharyulu
Keyword(s):  
Viscous Liquid ◽  
Second Order ◽  
Pulsating Flow ◽  
Parallel Plates ◽  
Steady Laminar

Unsteady Laminar Pulsating Flow in a Saturated Porous Microchannel in the Presence of Electrical Double-Layer Effects

2020 ◽  
Vol 142 (6) ◽  
Author(s):  
Muhammad Dilawar Khan Niazi ◽  
Hang Xu
Keyword(s):  
Angular Velocity ◽  
Forced Convection ◽  
Double Layer ◽  
Analytical Solutions ◽  
Electrical Double Layer ◽  
Darcy Number ◽  
Pulsating Flow ◽  
Temperature Fields ◽  
Parallel Plates ◽  
Periodic Pressure

Abstract The forced convection of a pulsating flow in a saturated porous parallel-plates microchannel driven by a periodic pressure in the presence of an electrical double layer is investigated. Such configuration is very important but seldom considered in literature. Analytical solutions for electrical, momentum, and temperature fields are obtained by means of a substitution approach. The results show that the flow fields depend highly on the electro-osmotic parameter κ, the angular velocity parameter Ω, as well as the Darcy number Da.

Steady laminar round jets of a viscous liquid falling vertically in the atmosphere

AIChE Journal ◽  
1990 ◽  
Vol 36 (5) ◽  
pp. 738-745 ◽  
Author(s):  
K. Adachi ◽  
K. Tagashira ◽  
Y. Banba ◽  
H. Tatsumi ◽  
H. Machida ◽  
...  
Keyword(s):  
Viscous Liquid ◽  
Round Jets ◽  
Steady Laminar

Fully Developed Couette Flow of Three Fluids With Variable Thermophysical Properties Flowing Through a Porous Medium Channel Heated Asymmetrically With Large Temperature Differences

2006 ◽  
Vol 129 (12) ◽  
pp. 1742-1747 ◽  
Author(s):  
Asterios Pantokratoras
Keyword(s):  
Porous Medium ◽  
Saturated Porous Medium ◽  
Engine Oil ◽  
Large Temperature ◽  
Parallel Plates ◽  
Moving Plate ◽  
Direct Numerical Solution ◽  
Oil Water ◽  
Fluid Saturated Porous Medium ◽  
Steady Laminar

In this paper, we study the steady laminar flow in a fluid-saturated porous medium channel bounded by two parallel plates with constant but unequal temperatures. One plate is moving with constant velocity while the other is stationary. For the porous medium, the Brinkman–Darcy–Forchheimer model is used. The investigation concerns engine oil, water, and air, taking into account the variation of their physical properties with temperature. The results are obtained with the direct numerical solution of the governing equations and cover large temperature differences. It is found that dynamic viscosity plays an important role on the results, which depart significantly from those of a fluid with constant properties when the temperature difference between the plates is large. Except that there are cases where the flow is restricted near the moving plate while at the lower part of the channel, the fluid is motionless.

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