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Numerical Simulation of Two-Phase Flow in an Effervescent Atomizer: Numerical Simulation of Two-Phase Flow in an Effervescent Atomizer for Nano-suspension Spray - Couverture souple

Arabzadeh Esfarjani, Sanaz

 
9783639174977: Numerical Simulation of Two-Phase Flow in an Effervescent Atomizer: Numerical Simulation of Two-Phase Flow in an Effervescent Atomizer for Nano-suspension Spray
Couverture souple
ISBN 10 : 3639174976 ISBN 13 : 9783639174977
Editeur : VDM Verlag, 2009

Synopsis

The main concern of atomization is to have a controllable and uniform spray. In suspension plasma spraying technique, there is a vital demand to produce a uniform and non-pulsating spray. Effervescent atomizers, in which a gas is bubbled into the bulk liquid through an aerator, have shown to be a technological alternative to the conventional atomizers when atomization of liquids with large variety of viscosity and density is required. Thus, understanding the behavior of gas and liquid flow through the nozzle is crucial to predict the condition of outcoming spray. In this study, the two-phase flow inside the effervescent atomizers is numerically modeled. The behavior of liquid film in the discharge passage is investigated using different Gas to Liquid mass flow Ratios (GLR). These numerical results are compared with the experimental data available in literature. The effect of nano-sized solid particles concentration on the liquid film thickness at the exit of the atomizer is studied through the change in liquid bulk density and viscosity.

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Présentation de l'éditeur

The main concern of atomization is to have a controllable and uniform spray. In suspension plasma spraying technique, there is a vital demand to produce a uniform and non-pulsating spray. Effervescent atomizers, in which a gas is bubbled into the bulk liquid through an aerator, have shown to be a technological alternative to the conventional atomizers when atomization of liquids with large variety of viscosity and density is required. Thus, understanding the behavior of gas and liquid flow through the nozzle is crucial to predict the condition of outcoming spray. In this study, the two-phase flow inside the effervescent atomizers is numerically modeled. The behavior of liquid film in the discharge passage is investigated using different Gas to Liquid mass flow Ratios (GLR). These numerical results are compared with the experimental data available in literature. The effect of nano-sized solid particles concentration on the liquid film thickness at the exit of the atomizer is studied through the change in liquid bulk density and viscosity.

Biographie de l'auteur

Sanaz is a research assistant and PhD student at University of Toronto,collaborating with Université de Sherbrooke on modeling large-scale carbon nanotube production.She pursued her MSc studies in the CFD lab at Concordia University_ Montréal. Her M.Sc studies involved the numerical investigation of two-phase flow inside the effervescent atomizers.

Les informations fournies dans la section « A propos du livre » peuvent faire référence à une autre édition de ce titre.

Éditeur
VDM Verlag
Date d'édition
2009
Langue
anglais
ISBN 10 
3639174976
ISBN 13 
9783639174977
Reliure
Broché
Nombre de pages
68
Coordonnées du fabricant
non disponible
Personne responsable
non disponible