Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/34377
Title: BUBBLE DYNAMICS IN FLUID PUMPING AND FORMATION OF SPRAYS AND JET
Authors: KARRI BADARINATH
Keywords: aspherically collapsing non-equilibrium bubble, sprays, impacting jets, viscous fluid pumping, bubble near holed plate
Issue Date: 26-Jan-2012
Source: KARRI BADARINATH (2012-01-26). BUBBLE DYNAMICS IN FLUID PUMPING AND FORMATION OF SPRAYS AND JET. ScholarBank@NUS Repository.
Abstract: An oscillating bubble near a plate with a hole fully submerged in liquid leads to pumping from one side of the hole to another due to the jet induced in the bubble. In the first part of the thesis, the effect of viscosity of the fluid on the formation of the jet and the subsequent pumping was studied, both qualitatively and quantitatively. When the plate is situated at the liquid surface, a bubble nucleated below the hole. leads to two jets of liquid, a slow primary jet during its expansion and a faster second jet due to bubble collapse. The interaction between the jets leads to a thin liquid sheet with a ring of droplets. In the second study, the formation of such impacting jets is presented. at the micrometer length scale and replicated at millimetre length scale to understand the mechanism involved. High-speed photography is used in all studies.
URI: http://scholarbank.nus.edu.sg/handle/10635/34377
Appears in Collections:Ph.D Theses (Open)

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