Vibration influence on the dynamics of a two-phase system in weightlessness conditions

Abstract
The paper deals with the analysis of the vibration influence on the dynamics of a two-phase system in zero gravity conditions. The influence of high frequency vibrations on the behavior of solids immersed in a liquid is analyzed. Mean forces and torques acting on the solids from oscillating liquid are determined from general equations of the liquid and solids motion. The interaction between two solids in oscillating liquid and their interaction with the vibrating rigid walls of a container is discussed. It is found that with the increase of distance between the solids, the force of interaction fastly decreases. In this case, orienting effect of vibrations manifests itself too ; vibrations orient cylindrical bodies in such a way, that the plane passing through the cylinder axes becomes perpendicular to the vibration axis. The interaction of the solids immersed in a liquid is also studied for the case when one of the solids undergoes high frequency oscillations. In this case the mean force of interaction is always attraction.