Small solid particles can be attached to an air–liquid interface due the pulling of surface tension. We investigate experimentally under which conditions a spherical particle pendant drop, varying density and diameter particle, as well size liquid drop. demonstrate that depending on drop size, largest is limited by two different mechanisms, either falling from nozzle together with or separating...

The motion of a three-dimensional deformable drop between two parallel plane walls in a low-Reynolds-number Poiseuille flow is examined using a boundary-integral algorithm that employs the Green’s function for the domain between two infinite plane walls, which incorporates the wall effects without discretization of the walls. We have developed an economical calculation scheme that allows long-t...

Here, we calculate the hydrodynamic ejection force acting on a microscopic emulsion drop, which is continuously growing at a capillary tip. This force could cause drop detachment in the processes of membrane and microchannel emulsification, and affect the size of the released drops. The micrometer-sized drops are not deformed by gravity and their formation happens at small Reynolds numbers desp...