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Interaction between an aerodynamically driven, wall-bound drop and a single groove

Seiler, Patrick M. ; Roisman, Ilia V. ; Tropea, Cameron (2024)
Interaction between an aerodynamically driven, wall-bound drop and a single groove.
In: The European Physical Journal Special Topics, 2020, 229 (10)
doi: 10.26083/tuprints-00023992
Article, Secondary publication, Publisher's Version

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Item Type: Article
Type of entry: Secondary publication
Title: Interaction between an aerodynamically driven, wall-bound drop and a single groove
Language: English
Date: 26 April 2024
Place of Publication: Darmstadt
Year of primary publication: September 2020
Place of primary publication: Berlin ; Heidelberg
Publisher: Springer
Journal or Publication Title: The European Physical Journal Special Topics
Volume of the journal: 229
Issue Number: 10
DOI: 10.26083/tuprints-00023992
Corresponding Links:
Origin: Secondary publication DeepGreen

The interaction between an air-driven, wall-bound drop and a groove in the wall of a channel flow has been investigated experimentally using a high-speed video system. Three major outcomes of drop interaction with the groove are observed: (i) the drop passes over the groove, (ii) the drop is immediately fully captured in the groove or (iii) the drop is captured after first wetting the rear side of the groove. The mechanisms leading to these different outcomes are governed by the aerodynamic drag force, by inertial and gravity forces, and by the adhesion force associated with the substrate wettability. A threshold condition for drop capture is developed, based on the ratio of the typical time for drop passage over the groove to the time for the drop to be sucked into the groove. It has been shown that the probability for drop capture increases for higher Bond numbers.

Uncontrolled Keywords: Condensed Matter Physics, Materials Science, general, Atomic, Molecular, Optical and Plasma Physics, Physics, general, Measurement Science and Instrumentation, Classical and Continuum Physics
Status: Publisher's Version
URN: urn:nbn:de:tuda-tuprints-239921
Additional Information:

Part of collection: Challenges in Nanoscale Physics of Wetting Phenomena

Classification DDC: 500 Science and mathematics > 530 Physics
600 Technology, medicine, applied sciences > 620 Engineering and machine engineering
Divisions: 16 Department of Mechanical Engineering > Fluid Mechanics and Aerodynamics (SLA)
Date Deposited: 26 Apr 2024 12:47
Last Modified: 30 Apr 2024 06:53
SWORD Depositor: Deep Green
URI: https://tuprints.ulb.tu-darmstadt.de/id/eprint/23992
PPN: 517576619
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