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Sensitivity of VOF simulations of the liquid jet breakup to physical and numerical parameters

Grosshans, H. LU ; Movaghar, A.; Cao, L.; Oevermann, M.; Szász, R. Z. LU and Fuchs, L. (2016) In Computers and Fluids 136. p.312-323
Abstract

In this paper the characteristics of the primary breakup of a liquid jet is analyzed numerically. We applied the Volumes of Fluids (VOF) approach utilizing the Direction Averaged Curvature (DAC) model, to estimate the interface curvature, and the Direction Averaged Normal (DAN) model, to propagate the interface. While being used for the first time to predict liquid atomization, this methodology showed a high accuracy. The influence of varying the fluid properties, namely liquid-gas density and viscosity ratio, and injection conditions is discussed related to the required grid resolution. Resulting droplet sizes are compared to distributions obtained through the One-Dimensional Turbulence (ODT) model.

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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Fluid properties, LES, Multiphase flows, ODT, VOF/DAN/DAC
in
Computers and Fluids
volume
136
pages
12 pages
publisher
Elsevier
external identifiers
  • scopus:84976505148
  • wos:000381535700021
ISSN
0045-7930
DOI
10.1016/j.compfluid.2016.06.018
language
English
LU publication?
yes
id
ee98b88e-1ca2-49fc-b78e-ada20404a18e
date added to LUP
2016-11-04 13:47:20
date last changed
2017-07-09 04:54:34
@article{ee98b88e-1ca2-49fc-b78e-ada20404a18e,
  abstract     = {<p>In this paper the characteristics of the primary breakup of a liquid jet is analyzed numerically. We applied the Volumes of Fluids (VOF) approach utilizing the Direction Averaged Curvature (DAC) model, to estimate the interface curvature, and the Direction Averaged Normal (DAN) model, to propagate the interface. While being used for the first time to predict liquid atomization, this methodology showed a high accuracy. The influence of varying the fluid properties, namely liquid-gas density and viscosity ratio, and injection conditions is discussed related to the required grid resolution. Resulting droplet sizes are compared to distributions obtained through the One-Dimensional Turbulence (ODT) model.</p>},
  author       = {Grosshans, H. and Movaghar, A. and Cao, L. and Oevermann, M. and Szász, R. Z. and Fuchs, L.},
  issn         = {0045-7930},
  keyword      = {Fluid properties,LES,Multiphase flows,ODT,VOF/DAN/DAC},
  language     = {eng},
  month        = {09},
  pages        = {312--323},
  publisher    = {Elsevier},
  series       = {Computers and Fluids},
  title        = {Sensitivity of VOF simulations of the liquid jet breakup to physical and numerical parameters},
  url          = {http://dx.doi.org/10.1016/j.compfluid.2016.06.018},
  volume       = {136},
  year         = {2016},
}