Abstract

The response of a viscous liquid column to counter-directional one-sided and phase-different pitching excitation of the walls between which the column is placed has been presented in zero-gravity environment. For a simplified analytical treatment the no-slip condition has been abandoned. Velocity distribution and free surface displacement have been determined as functions of the “reduced” forcing frequency Ωα 2 v . Since the upper and lower wall of the liquid column are changing locally their distance, the liquid column always moves into the converging wall space.

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