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Sensitivity of VOF simulations of the liquid jet breakup to physical and numerical parameters
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2016 (English)In: Computers & Fluids, ISSN 0045-7930, E-ISSN 1879-0747, Vol. 136, 312-323 p.Article in journal (Refereed) Published
Abstract [en]

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.

Place, publisher, year, edition, pages
Elsevier, 2016. Vol. 136, 312-323 p.
Keyword [en]
Multiphase flows, LES, Fluid properties, VOF/DAN/DAC, ODT
National Category
Applied Mechanics
URN: urn:nbn:se:kth:diva-194273DOI: 10.1016/j.compfluid.2016.06.018ISI: 000381535700021ScopusID: 2-s2.0-84976505148OAI: diva2:1039574

QC 20161024

Available from: 2016-10-24 Created: 2016-10-21 Last updated: 2016-10-24Bibliographically approved

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