New insights into the capillary retention force and the work of adhesion

We calculate the normal capillary retention force that anchors a drop to solid surface in direction perpendicular surface, and study relationship between such Young-Dupré work of adhesion. also necessary create or destroy patch solid-liquid interface by moving triple line on substrate. argue when number is small sliding at constant speed, lateral major source energy dissipation, whereas viscous dissipation plays minor role.