Throughflow and rotational effects on oscillatory convection with modulation

Abstract

The effect of throughflow and temperature modulation on rotating porous medium is investigated. Weakly nonlinear flow model is considered to study heat transfer with oscillatory mode of convection. Heat transfer is measured in terms of the Nusselt number, which is governed by the non-autonomous complex Ginzburg-Landau equation. Both concepts of rotation and throughflow are used as an external mechanism to regulate heat transfer. The amplitude and frequency of modulation show significant effect on heat transport. Throughflow has duel effect on heat transfer depending its direction. The outflow enhances and inflow diminishes the heat transfer. Similarly high rotation rates promotes heat transfer and low rotation rates diminish heat transfer. Further, the effect of modulation on mean Nusselt number is discussed. The results computed numerically using Runge-Kutta-
Fehlberg Method.