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Events and conditions in droplet impact: A phase field prediction
KTH / Jiangsu University, Zhenjiang, Peoples R China.
ENSTA ParisTech, Marechaux, France.
KTH.
2016 (English)In: International Journal of Multiphase Flow, ISSN 0301-9322, E-ISSN 1879-3533, Vol. 87, 54-65 p.Article in journal (Refereed) Published
Abstract [en]

The phenomenon of droplet impact on a smooth, flat, partially wetted surface is studied by phase field simulation. A map of the different impact regimes is constructed for Reynolds numbers ranging from Re = 9 to Re = 9 x 10(4), and Ohnesorge numbers ranging from Oh = 3.3 x 10(-4) to Oh = 1.05. The results are compared with previous experiments from several aspects such as gas bubble entrapment, spreading radius and liquid sheet splashing, etc. The simulation proposes event predictions that are consistent with previous experiments. Our results and discussions give an overview of important characteristics during droplet impact, and provide insights on the droplet spreading after impact.

Place, publisher, year, edition, pages
2016. Vol. 87, 54-65 p.
Keyword [en]
Droplet impact, Phase field method, Simulation, Splashing, Gas entrapment
National Category
Mechanical Engineering
Identifiers
URN: urn:nbn:se:sh:diva-31320DOI: 10.1016/j.ijmultiphasefiow.2016.08.009ISI: 000386645300006OAI: oai:DiVA.org:sh-31320DiVA: diva2:1054650
Available from: 2016-12-08 Created: 2016-12-08 Last updated: 2016-12-08Bibliographically approved

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Amberg, Gustav
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