Electrohydrodynamic instability of two superposed Walters B´ viscoelastic fluids in relative motion through porous medium

2001 ◽  
Vol 71 (11) ◽  
pp. 717-732 ◽  
Author(s):  
M. F. El-Sayed
Keyword(s):  
Porous Medium ◽  
Relative Motion ◽  
Viscoelastic Fluids ◽  
Electrohydrodynamic Instability

ELECTROHYDRODYNAMIC INSTABILITY OF LIQUID SHEET SATURATING POROUS MEDIUM WITH INTERFACIAL SURFACE CHARGES

2013 ◽  
Vol 23 (2) ◽  
pp. 165-191
Author(s):  
Mohamed F. El-Sayed ◽  
M. H. M. Moussa ◽  
Ahmed A. A. Hassan ◽  
N. M. Hafez
Keyword(s):  
Porous Medium ◽  
Liquid Sheet ◽  
Surface Charges ◽  
Electrohydrodynamic Instability ◽  
Interfacial Surface

Heat transfer in unsteady flow through a porous medium between two infinite parallel plates in relative motion

1991 ◽  
Vol 57 (1) ◽  
pp. 28-31 ◽  
Author(s):  
V. M. Soundalgekar ◽  
R. M. Lahuriker ◽  
S. C. Pohnerkar
Keyword(s):  
Heat Transfer ◽  
Porous Medium ◽  
Unsteady Flow ◽  
Relative Motion ◽  
Parallel Plates ◽  
Flow Through

Rayleigh-Taylor Instability of Newtonian and Oldroydian Viscoelastic Fluids in Porous Medium

1994 ◽  
Vol 49 (10) ◽  
pp. 927-930
Author(s):  
R. C. Sharma ◽  
V. K. Bhardwaj
Keyword(s):  
Porous Medium ◽  
Interfacial Tension ◽  
Viscoelastic Fluids ◽  
Taylor Instability ◽  
Horizontal Boundary ◽  
Wave Numbers ◽  
Unstable Configuration ◽  
Rayleigh Taylor Instability

AbstractThe Rayleigh-Taylor instability of viscous and viscoelastic (Oldroydian) fluids, separately, has been considered in porous medium. Two uniform fluids separated by a horizontal boundary and the case of exponentially varying density have been considered in both viscous and viscoelastic fluids. The effective interfacial tension succeeds in stabilizing perturbations of certain wave numbers (small wavelength perturbations) which were unstable in the absence of effective interfacial tension, for unstable configuration/stratification.

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