PECULIAR BEHAVIOR OF HE-II DISTURBANCES DUE TO SLOSHING DYNAMICS DRIVEN BY JITTER ACCELERATIONS ASSOCIATED WITH SLEW MOTION IN MICROGRAVITY

The mathematical formulation of Dewar container sloshing dynamics when partially filled with superfluid liquid He II driven by the gravity jitter acceleration associated with slew motion in a microgravity environment is studied. Numerical computation of the sloshing dynamics is based on the non-inertia container bound co-ordinate, and solving time-dependent, three-dimensional formulations of partial differential equations subject to initial and boundary conditions. This study discloses the capillary effect of the sloshing dynamics governing the liquid-vapour interface fluctuations driven by the gravity jitter acceleration associated with slew motion, which affects the stability of the fluid system in a microgravity environment. The peculiar behaviour of superfluid helium when reacting to the sloshing dynamics driven by the gravity jitter acceleration associated with slew motion in a microgravity environment is also investigated.