Sound effect on dynamics and stability of fluid sloshing in zero-gravity (Q2719375)

Theoretical study of acoustic interaction affecting the dynamics and stability of limited fluid volume in zero-gravity is carried out. Two main acoustic effects on a fluid surface are analysed. The first is the change of dynamics characteristics of fluid sloshing in zero-gravity due to acoustic loading; the second is the movement of a ``fluid cork'' along the tube (acoustic pumping). Mathematical analysis is based on the averaging of the original free interface problem. This allows to reduce the fr ee interface problem to the free boundary problem on surface waves with additional nonlinear terms in the dynamic condition on an unknown surface.