Effect of time-periodic boundary temperatures/body force on Rayleigh–Benard convection in a ferromagnetic fluid

2003 ◽  
Vol 161 (3) ◽  
pp. 131-150 ◽  
Author(s):  
P. G. Siddheshwar ◽  
A. Abraham
Keyword(s):  
Periodic Boundary ◽  
Body Force ◽  
Bénard Convection ◽  
Benard Convection ◽  
Ferromagnetic Fluid ◽  
Rayleigh Benard Convection ◽  
Rayleigh Benard ◽  
Time Periodic

scholarly journals Rayleigh-Benard convection in a dielectric liquid: time-periodic body force

PAMM ◽  
2007 ◽  
Vol 7 (1) ◽  
pp. 2100083-2100084 ◽  
Author(s):  
Pradeep G. Siddheshwar ◽  
Annama Abraham
Keyword(s):  
Body Force ◽  
Dielectric Liquid ◽  
Bénard Convection ◽  
Benard Convection ◽  
Rayleigh Benard Convection ◽  
Rayleigh Benard ◽  
Time Periodic

scholarly journals TEMPERATURE MODULATION IN RAYLEIGH–BÉNARD CONVECTION

2008 ◽  
Vol 50 (2) ◽  
pp. 231-245 ◽  
Author(s):  
JITENDER SINGH ◽  
RENU BAJAJ
Keyword(s):  
Floquet Theory ◽  
Fluid Layer ◽  
Temperature Modulation ◽  
Bénard Convection ◽  
Benard Convection ◽  
The Stability ◽  
Rayleigh Benard Convection ◽  
Rayleigh Benard ◽  
Horizontal Fluid Layer ◽  
Time Periodic

AbstractThe stability characteristics of an infinite horizontal fluid layer excited by a time-periodic, sinusoidally varying free-boundary temperature, have been investigated numerically using the Floquet theory. It has been found that the modulation of the temperature gradient across the fluid layer affects the onset of the Rayleigh–Bénard convection. Modulation can give rise to instability in the subcritical conditions and it can also suppress the instability in the supercritical cases. The instability in the fluid layer manifests itself in the form of either a harmonic or subharmonic flow, controlled by thermal modulation.

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