title: Equilibrium height of a liquid in a gap between corrugated walls under spontaneous capillary penetration.
abstract: A simple and general method is presented to calculate the equilibrium surface of a liquid that penetrates spontaneously, due to capillarity, in the gap between two vertical corrugated plates. Several properties of the equilibrium solution are discussed and the results are backed by a qualitative experiment.
authors.affiliation: SEPI-ESIME-A, Instituto Politécnico Nacional, Av. de las Granjas 682, Col. Sta. Catarina Azcapotzalco D.F. C.P. 02550, Mexico.
authors.forename: G J
authors.initials: GJ
authors.lastname: Gutierrez
authors.forename: A
authors.initials: A
authors.lastname: Medina
authors.forename: F J
authors.initials: FJ
authors.lastname: Higuera