We examine the effects of capillarity and gravity in a model of one-dimensional imbibition of an incompressible liquid into a deformable porous material. We focus primarily on a capillary rise problem but also discuss a capillary/gravitational drainage configuration in which capillary and gravity forces act in the same direction. Models in both cases can be formulated as nonlinear free-boundary...

New blood forming vessels are produced by differentiation of mesodermal precursor cells to angioblasts that become endothelial cells (ECs) which in turn give rise to primitive capillary network. Human cord blood (HCB) contains large subsets of mononuclear cells (MNCs) that can be differentiated into endothelial-like cells in vitro. Human mononuclear progenitor cells were purified from fresh umb...

In this note, the dimensions of elliptic and semielliptic tubes in which capillary rise starts oscillating about its Jurin’s height are determined. Comparisons with classical circular semicircular made.

Capillary rise is a phenomenon that must be considered an inevitable factor when dealing with unsaturated gypseous soil. This study investigates the behavior of soil under capillary action, where different gypsum content and densities are experimentally tested in developed laboratory model consisting Transparent pipes 1 m long 0.05 diameter. All placed inside rectangular basin dimension (1500×5...

An extensive experimental study of the kinetics of capillary rise in borosilicate glass tubes of different sizes and cross-sectional shapes using various fluid systems and tube tilt angles is presented. The investigation is focused on the direct measurement of dynamic contact angle and its variation with the velocity of the moving meniscus (or capillary number) in capillary rise experiments. We...

To aid in the recycling of ionic liquids, a method that takes advantage capillary phenomena at small scales is presented. The phase separation performed temperature gradient by joint effects sedimentation and thermocapillary actuation. This gives rise to complex three-dimensional flow structure, which quantitatively captured our model.