<div class="csl-bib-body">
<div class="csl-entry">Beckedorff, L. E., Caridi, G. C. A., Giurgiu, V., & Soldati, A. (2023, September 19). <i>Experiments on deformable oil droplets in turbulence</i> [Conference Presentation]. 76th Annual Meeting of the APS Division of Fluid Dynamics (APS-DFD 2023), Washington, United States of America (the).</div>
</div>
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/192290
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dc.description.abstract
In this work, we experimentally investigate the momentum flux and breakup frequency in low-concentration oil in water mixtures. We use six high-speed cameras to capture the droplets dynamics in homogeneous and isotropic turbulence (HIT). The experiments are done in the TU Wien Jet-Stirred Turbulence Tunnel: two opposite jet arrays generate local HIT with zero-mean flow within an octagonal test section. The Taylor-Reynolds number ranges from 100 to 300, featuring energy dissipation rates of Ο(0.1 m2s-3). We control the turbulence intensity and the droplets diameter to set the Weber number (We) to Ο(1), while changing the droplets viscosity tunes the Ohnesorge number (Oh) to Ο(0.1–10). Different methyl phenyl silicone oils are used, with the kinematic viscosity ranging from 20 to 3000 cSt; the oils are density-matched with the carrier phase (distilled water). To assess the complex interplay between the two phases, we simultaneously measure the interface shape and the surrounding flow structures. The interface reconstruction is based on the virtual-camera method (Masuk et al. 2019), and flow statistics are obtained via Shake-the-Box. As results, we discuss the 3D reconstruction of the filaments formed before the breakup, how the droplets inner viscosity affects the deformation rate, and how the breakup frequency scales with We/(1+Oh).
en
dc.language.iso
en
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dc.subject
deformable droplets
en
dc.subject
turbulence
en
dc.title
Experiments on deformable oil droplets in turbulence
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dc.type
Presentation
en
dc.type
Vortrag
de
dc.type.category
Conference Presentation
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tuw.researchTopic.id
M1
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tuw.researchTopic.name
Surfaces and Interfaces
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tuw.researchTopic.value
100
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tuw.publication.orgunit
E322-01 - Forschungsbereich Strömungsmechanik
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tuw.event.name
76th Annual Meeting of the APS Division of Fluid Dynamics (APS-DFD 2023)
en
tuw.event.startdate
19-11-2023
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tuw.event.enddate
21-11-2023
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tuw.event.online
On Site
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tuw.event.type
Event for scientific audience
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tuw.event.place
Washington
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tuw.event.country
US
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tuw.event.presenter
Beckedorff, Leonel Edward
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wb.sciencebranch
Maschinenbau
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wb.sciencebranch
Physik, Astronomie
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wb.sciencebranch
Mathematik
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wb.sciencebranch.oefos
2030
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wb.sciencebranch.oefos
1030
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wb.sciencebranch.oefos
1010
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wb.sciencebranch.value
50
-
wb.sciencebranch.value
40
-
wb.sciencebranch.value
10
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item.languageiso639-1
en
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item.openairetype
conference paper not in proceedings
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item.grantfulltext
none
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item.fulltext
no Fulltext
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item.cerifentitytype
Publications
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item.openairecristype
http://purl.org/coar/resource_type/c_18cp
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crisitem.author.dept
E322-01 - Forschungsbereich Strömungsmechanik
-
crisitem.author.dept
E322-01 - Forschungsbereich Strömungsmechanik
-
crisitem.author.dept
E322-01 - Forschungsbereich Strömungsmechanik
-
crisitem.author.dept
E322 - Institut für Strömungsmechanik und Wärmeübertragung
-
crisitem.author.parentorg
E322 - Institut für Strömungsmechanik und Wärmeübertragung
-
crisitem.author.parentorg
E322 - Institut für Strömungsmechanik und Wärmeübertragung
-
crisitem.author.parentorg
E322 - Institut für Strömungsmechanik und Wärmeübertragung
-
crisitem.author.parentorg
E300 - Fakultät für Maschinenwesen und Betriebswissenschaften
