Transformation of the Bridge During Separation of a Droplet
Yu. D. Chashechkin, E. V. Prokhorov
Ishlinskii Institute for Problems in Mechanics, Russian Academy of Sciences, Moscow, 119526, Russia
Keywords: капля, сопло, отрыв, поверхностное натяжение, вязкость, структурные элементы, сателлит, перемычка, характерные масштабы, динамика, drop, nozzle, separation, surface tension, viscosity, structural elements, satellite, bridge, characteristic scales, dynamics
Abstract
The geometry of flows resulting from separation of hanging drops of liquids with significantly different physical properties (alcohol, water, glycerin, oil) was studied by high-speed video recording. The dynamics of the processes is studied for characteristic shapes of bridges: with slightly nonuniform thickness and with thinning of the upper and lower ends. It is shown that the change of the shape of the separated bridge has a number of stages determined by the properties of the liquid. As a result, the bridge is transformed into a small droplet - a satellite droplet.
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