Abstract
Condition for the onset of interfacial turbulence in mass transfer is investigated by a linear stability analysis. In a previous paper, it was revealed that inclusion of the Rayleigh effect as well as the Marangoni effect into analysis alters the stability limit and removes the contradiction between many experimental results and the Sternling and Scriven criteria of stability.
In this paper, the analysis is further extended to include oscillatory instability, which was neglected in the previous analysis.
The results show that oscillatory instability takes an important role in the onset of instabilities, and also that oscillatory instability always takes place when the destabilizing Rayleigh effect and the stabilizing Marangoni effect are competing.
It is suggested that the oscillatory instability of this kind may be correlated to the onset of violent interfacial turbulence or eruption.
