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Size distribution modelling of secondary atomization in spray of plain-jet airblast atomizer with finite stochastic breakup model

Authors :
Shafaee, Maziar
Sabour, Mohammad Hosein
Abdehkakha, Armin
Elkaie, Abbas
Source :
Ind J Sci Res, 1(2), 123-30 (2014)
Publication Year :
2021

Abstract

An experimental investigation of secondary atomization of spray in plain-jet airblast atomizers with a circular array of six liquid jets is studied. Crossflow of air with controlled velocity and pressure is applied to transverse jets. The liquid jets (Re=12000) are injected into airflow (Weg of 1250-3000) analyzed experimentally for different injection diameters of 0.8-1.6 mm. Particle size distribution measurement is carried out by Malvern Mastersizer X in the fully atomized region of the atomizer. The droplet size distribution in the secondary or final atomization stage is also modeled by the Finite stochastic Breakup model, which requires 4 parameters to be defined i.e. initial droplet diameter, maximum stable droplet size, minimum mass ratio, and droplet breakup probability. The modeling approximation is in very good agreement with the experimental result. This remarkable consistency between model and experiment is quite useful in terms of optimal atomization performance by considering the dynamics of the liquid jet.

Subjects

Subjects :
Physics - Fluid Dynamics

Details

Database :
arXiv
Journal :
Ind J Sci Res, 1(2), 123-30 (2014)
Publication Type :
Report
Accession number :
edsarx.2106.04611
Document Type :
Working Paper