A mathematical model for predicting spray atomization characteristics in an Eulerian–Eulerian framework

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• 作者：Hossam S. Aly ; Yehia A. Eldrainy ; Khalid M. Saqr ; Tholudin M. Lazim ; Mohammad Nazri Mohd Jaafar
• 关键词：CFD ; Population balance ; Atomization ; Droplet break-up ; Turbulence
• 刊名：International Communications in Heat and Mass Transfer
• 出版年：2010
• 出版时间：July 2010
• 年：2010
• 卷：37
• 期：6
• 页码：618-623
• 全文大小：503 K

文摘

A new mathematical model is developed for calculating droplet break-up frequency based on both drag and turbulence induced fragmentation stresses. The droplet break-up model is introduced into a CFD methodology that is based on the Eulerian–Eulerian approach. The CFD solver couples the population balance equation along with the Navier–Stokes equations for predicting the droplets diameter. Finally, preliminary results using this CFD model are presented for the case of a coaxial airblast atomizer and a good agreement with the experimental data is achieved.