Stability analysis in a rotating couple-stress fluid heated from below saturating a porous medium with temperature-pressure dependent viscosity

2015 ◽  
Vol 6 (1) ◽  
pp. 79
Author(s):  
Reeta Devi ◽  
Sunil
Keyword(s):  
Porous Medium ◽  
Stability Analysis ◽  
Couple Stress ◽  
Couple Stress Fluid ◽  
Pressure Dependent Viscosity ◽  
Dependent Viscosity

Conditional stability for thermal convection in a rotating couple-stress fluid saturating a porous media with temperature- and pressure-dependent viscosity using a thermal non-equilibrium model

2014 ◽  
Vol 39 (2) ◽  
Author(s):  
Sunil ◽  
Shalu Choudhary ◽  
Amit Mahajan
Keyword(s):  
Equilibrium Model ◽  
Couple Stress ◽  
Linear Instability ◽  
Couple Stress Fluid ◽  
Conditional Stability ◽  
Onset Of Convection ◽  
Pressure Dependent Viscosity ◽  
Temperature And Pressure ◽  
Dependent Viscosity ◽  
Non Equilibrium

Abstract.A nonlinear stability threshold for convection in a rotating couple-stress fluid saturating a porous medium with temperature- and pressure-dependent viscosity using a thermal non-equilibrium model is found to be exactly the same as the linear instability boundary. This optimal result is important because it shows that linear theory has completely captured the physics of the onset of convection. The effects of couple-stress fluid parameter

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