Hydrodynamics of Fluid Flow Approaching a Moving Boundary

An experimental and numerical study has been conducted to investigate the flow field in the vicinity of a moving solid boundary that passes through a free surface into a liquid phase. Through the use of particle image velocimetry (PIV) techniques, the variation in the liquid velocity field in the vicinity of the threephase contact line has been quantified for solid bou ndary velocities ranging between 0.12 and 1.01 m s-1. The experimental measurements provide good verification for a preliminary numerical model that predicts the bulk-bath flow patterns and boundary layer thickness.