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Events and conditions in droplet impact: A phase field prediction
KTH, School of Engineering Sciences (SCI), Mechanics. KTH, School of Engineering Sciences (SCI), Centres, Linné Flow Center, FLOW. Jiangsu University, China.ORCID iD: 0000-0002-5915-0789
KTH, School of Engineering Sciences (SCI), Centres, Linné Flow Center, FLOW. KTH, School of Engineering Sciences (SCI), Mechanics.ORCID iD: 0000-0003-2830-0454
KTH, School of Engineering Sciences (SCI), Centres, Linné Flow Center, FLOW. KTH, School of Engineering Sciences (SCI), Mechanics.ORCID iD: 0000-0003-3336-1462
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=9×104, and Ohnesorge numbers ranging from Oh=3.3×10−4 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
Elsevier, 2016. Vol. 87, 54-65 p.
Keyword [en]
Droplet impact, Gas entrapment, Phase field method, Simulation, Splashing, Phase transitions, Reynolds number, Gas entrapments, Phase field methods, Drops
National Category
Fluid Mechanics and Acoustics
Identifiers
URN: urn:nbn:se:kth:diva-195189DOI: 10.1016/j.ijmultiphaseflow.2016.08.009ISI: 000386645300006Scopus ID: 2-s2.0-84987942203OAI: oai:DiVA.org:kth-195189DiVA: diva2:1051666
Note

QC 20161202

Available from: 2016-12-02 Created: 2016-11-02 Last updated: 2017-06-28Bibliographically approved

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