Surfactant effect on bubble deformation and breakup after interaction with vortex structure

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985858%3A_____%2F25%3A00603954" target="_blank" >RIV/67985858:_____/25:00603954 - isvavai.cz</a>
Alternative codes found
RIV/44555601:13440/25:43899000 RIV/60461373:22340/25:43931174
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0009250924014441?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0009250924014441?via%3Dihub</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.ces.2024.121144" target="_blank" >10.1016/j.ces.2024.121144</a>

Result language
angličtina
Original language name
Surfactant effect on bubble deformation and breakup after interaction with vortex structure
Original language description
Bubble – vortex ring interaction is studied experimentally in order to investigate the effect of surfactants on bubble deformation and possible breakup. The experiments are based on high-speed visualization of a single bubble interacting with a single vortex ring. The effect of surfactant is investigated using α-terpineol as a model surfactant, at two concentrations 1×10- 3 and 3×10- 3 mol/l. The presence of surfactant dampens the bubble deformation and increases the energy required to break the bubble after interaction with the vortex ring. Therefore, the interaction process is less likely to result in bubble breakup. A novel parameter characterizing the fast-dynamic changes of the bubble interface is proposed based on the surface concentration of surfactant at the actual bubble age [1-(Γ/Γmax)]. This parameter is applied to correct the Weber number, which scales the breakup process in both clean and contaminated interfaces. The parameter successfully correlates both the breakup frequency and the mean number of daughter bubbles under different conditions, demonstrating its potential as a universal metric.
Czech name
—
Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
20402 - Chemical process engineering

Project
<a href="/en/project/GA22-29605S" target="_blank" >GA22-29605S: Interactions of single bubble or drop with a vortex-ring</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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