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

✍ Scribed by Hossam S. Aly; Yehia A. Eldrainy; Khalid M. Saqr; Tholudin M. Lazim; Mohammad Nazri Mohd Jaafar

• Publisher: Elsevier Science
• Year: 2010
• Tongue: English
• Weight: 503 KB
• Volume: 37
• Category: Article
• ISSN: 0735-1933
• DOI: 10.1016/j.icheatmasstransfer.2010.02.003

✦ Synopsis

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.