Authors: N Zeoli H Tabbara S Gu
Publish Date: 2012/05/16
Volume: 108, Issue: 4, Pages: 783-792
Abstract
Until now much of the modelling activity around closecoupled gas atomization has been mainly focused on gasonly flow with discrete phase interaction using Lagrangianbased models However this approach is unable to supply valuable information regarding the primary breakup mechanism of the melt being injected Furthermore much of existing numerical work is based on twodimensional axisymmetric geometries and therefore suffers the absence of threedimensional flow features In order to overcome these aspects the authors have carried out an analysis using a threedimensional geometry by means of an Eulerian Volume of Fluid model to accurately present the early stages of melt stream behaviour at the atomizer’s melt inlet The study investigates the mechanisms associated with primary breakup and the results obtained highlight three modes under which a closecoupled atomizer may operate
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