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

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

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 ba...

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Bibliographic Details
Main Authors: S. Aly, Hossam, Eldrainy, Yehia A., M. Saqr, Khalid, Mat Lazim, Tholudin, Mohd. Jaafar, Mohammad Nazri
Format: Article
Published: Elsevier Ltd. 2010
Subjects:
TJ Mechanical engineering and machinery
Online Access:http://eprints.utm.my/id/eprint/22802/
https://doi.org/10.1016/j.icheatmasstransfer.2010.02.003
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Institution: Universiti Teknologi Malaysia
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Summary: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.

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