Numerical simulation of the primary breakup in a two-fluid thin nozzle

2020 ◽  
Author(s):  
Lucas Ivan de Souza Vereza Medeiros ◽  
Rafael Velozo ◽  
Leonardo Machado da Rosa ◽  
Jonathan Utzig ◽  
Henry França Meier
Keyword(s):  
Numerical Simulation ◽  
Primary Breakup ◽  
Two Fluid ◽  
Thin Nozzle

Dynamics of the Internal Flow in Swirl Atomizers by CFD Simulations

2018 ◽  
pp. 100-132
Author(s):  
Roman Ivanovitch Savonov
Keyword(s):  
Numerical Simulation ◽  
Homogeneous Model ◽  
Internal Flow ◽  
Surface Model ◽  
Cfd Simulations ◽  
Two Phase ◽  
Two Phases ◽  
Swirl Atomizer ◽  
Free Surface Model ◽  
Two Fluid

This work presents the simulation of the internal flow in a swirl atomizer. The geometry of the atomizer is calculated by analytical equations used in engineering. The numerical simulation of the two-phase flow is performed by using two equations k-ε turbulence model. The fluids are presented as two-fluid homogeneous model. The interface between two phases is calculated by free surface model. The distribution fields of the axial and tangential velocities, pressures and air core are obtained. The aim of this work is to compare the results obtained by numerical simulation with ones obtained analytically. Also, to study the internal fluids flow inside the atomizer.

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