Modulation of Thermal Convection Instability
Sruly Rosenblat, Gaku TANAKA · The Physics of Fluids · 1971
The linear stability problem for a fluid in a classical Bénard geometry, when the temperature gradient has both a steady and a time-periodic component, is considered. The modulating effect of the oscillatory gradient on the stability characteristics of the basic configuration is examined. It is found that, in general, there is enhancement of the critical value of a suitably defined Rayleigh number.