Artículo
Mesh resolution effects on primary atomization simulations
Pairetti, César Ignacio
; Marquez Damian, Santiago
; Nigro, Norberto Marcelo
; Popinet, Stéphane; Zaleski, Stéphane
Fecha de publicación:
12/2020
Editorial:
Begell House
Revista:
Atomization and Sprays
ISSN:
1044-5110
e-ISSN:
1936-2684
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
In this work, we use direct numerical simulation through a volume of fluid solver with adaptivemesh refinement to analyze the atomization of a pulsating round liquid jet with a narrow length-scale range configuration. We propose three grid sizes based on characteristic scales we estimate from the deformation and fragmentation processes of this problem. We compute drop statistics and general spray features for each case. We found that mesh resolution affects the atomization rate and the probability density function of droplet size and position, not only for the underresolved drops but for all liquid structures. The two simulations with higher grid refinement presented volume-weighted distribution with minor differences. Therefore, we propose assessing the accuracy of atomization simulations based on the volume fraction of underresolved structures.
Palabras clave:
ADAPTIVE MESH REFINEMENT (AMR)
,
ATOMIZATION
,
BASILISK
,
VOLUME OF FLUID (VOF)
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Identificadores
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Articulos(CIMEC)
Articulos de CENTRO DE INVESTIGACION DE METODOS COMPUTACIONALES
Articulos de CENTRO DE INVESTIGACION DE METODOS COMPUTACIONALES
Citación
Pairetti, César Ignacio; Marquez Damian, Santiago; Nigro, Norberto Marcelo; Popinet, Stéphane; Zaleski, Stéphane; Mesh resolution effects on primary atomization simulations; Begell House; Atomization and Sprays; 30; 12; 12-2020; 913-935
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