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COBEM 2021
26th International Congress of Mechanical Engineering
STRATIFIED TWO-PHASE FLOW MODEL FOR EFFERVESCENT ATOMIZATION
Submission Author:
Jordan Gutierrez , SP
Co-Authors:
Jordan Gutierrez, Andrés Armando Mendiburu Zevallos, Leila Ribeiro dos Santos, João Carvalho
Presenter: Jordan Gutierrez
doi://10.26678/ABCM.COBEM2021.COB2021-0028
Abstract
This work consists in the development of a stratified two-phase flow model to calculate the physical variables of fluids in the exit orifice of the effervescent atomizer. The physical variables of fluids determined by the model are the gas volume fraction, dimensionless two-phase pressure, dimensionless gas temperature, dimensionless two-phase density, liquid velocity, gas velocity, speed of sound and the liquid thickness. From the results determined by the model, it was observed that the geometric variables of the atomizer have very little influence. Because the model allows reasonable results, it is considered that it can be useful in further research on primary and secondary atomization, and thus better estimate the characteristic parameters of the spray. Additionally, a dimensionless model was developed for the prediction of the mean diameter of the drops (ID32) which is characterized by having R2 = 0.734 and RMSE = 3.165, which is why it is considered to be a good dimensionless model for the prediction.
Keywords
Stratified two-phase flow model, Effervescent atomization, Spray
