Abstract
The study of flow characteristics of spray jets in an injector nozzle, sol-gel process is very critical for scientific studies. In this communication, we report results from a numerical modeling of spray jet dynamics and its breakup. The nature of instability depends on the density of the jet fluid and the ambient fluid and also on the velocity of the jet. The present work is motivated by the lack of quantitative measurement to explain the nature of instability of a vertically descending jet into a stagnant medium. In order to capture the sharp gradient between the interfaces, modified Volume of Fluid, using an extra compression term is used. The velocity profiles and spread angle are measured to quantitatively explain the mixing and growth of the instability in such complex multiphase flows.
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