Model of film flow in a dead-end conic capillary

A physical theory of formation and growth of a liquid column in the dead end of a conic capillary submerged in a liquid has been constructed. It has been established that the mechanism of their phenomenon is based on the film flow (stabilized by disjoining pressure) over capillary walls because of the difference of pressures in two liquid columns due to capillary forces. The main qualitative features of the process following from the theory, namely, the constancy of the liquid flow to the vertex with time and the linear dependence of the inverse specific flow on the angle of opening of capillaries, have been confirmed experimentally.[PUBLICATION ABSTRACT]