Abstract

FRANCISCO, M; MEDINA, A; SANCHEZ, F.A  and  HIGUERA, F.J. Alturas de equilibrio de líquidos en celdas de Hele-Shaw corrugadas bajo penetración capilar espontánea. Rev. mex. fis. [online]. 2008, vol.54, n.3, pp.247-252. ISSN 0035-001X.

A simple and general method to calculate the equilibrium heights of a liquid that penetrates spontaneously, due to capillarity, into a corrugated Hele-Shaw cell is presented. A cosine-like corrugation was imposed on each internal face of the plates that made the cell and periodic channels were generated. It were found complex equilibrium heights which allow to evaluate the volumes of absorbed liquid or expelled gas. Equilibrium heights were also evaluated in corrugated tilted cells.

Keywords : Capillary penetration; free surface flows; micro and nano flows.