STABILITY OF CONVECTION IN A VIBRATING POROUS LAYER

摘要

The linear stability theory is used to investigate analytically the effects of vibration on convection in a homogenous porous layer heated from below. The gravitational field consists of a constant part and a sinusoidally varying part, which is tantamount to a vertically oscillating porous layer subjected to constant gravity. The linear stability results are presented for the specific case of low amplitude vibration for which it is shown that increasing the frequency of vibration stabilizes the convection.