Collision of Bubbles with Solid Surface in the Presence of Specific Surfactants.

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985858%3A_____%2F21%3A00542379" target="_blank" >RIV/67985858:_____/21:00542379 - isvavai.cz</a>

Alternative codes found

RIV/60461373:22340/21:43923123

Result on the web

<a href="https://www.mdpi.com/2075-163X/11/5/442" target="_blank" >https://www.mdpi.com/2075-163X/11/5/442</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/min11050442" target="_blank" >10.3390/min11050442</a>

Result language

angličtina

Original language name

Collision of Bubbles with Solid Surface in the Presence of Specific Surfactants.

Original language description

The present work is motivated by the effort to understand basic processes occurring in three-phase systems where small bubbles interact with large particles. The simplified system of a single bubble rising in a stagnant liquid and colliding with a solid surface is studied. The effect of two specific surfactants, α-Terpineol and n-Octanol, is investigated. Two independent measurements are combined: bubble–solid surface collision experiments and the bubble shape oscillations induced by a movable capillary. It was observed that even for small concentrations of a surfactant, both the bubble shape oscillations and the bubble bouncing on the solid surface are significantly suppressed. Two predictions for the restitution coefficient are proposed. The equations include a term characterizing the suppression of the damping time in the presence of surfactants and a term balancing the inertia, capillary and viscous forces in the liquid film separating the bubble and the solid surface.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

20401 - Chemical engineering (plants, products)

Project

<a href="/en/project/GA19-09518S" target="_blank" >GA19-09518S: Dynamics of unsteady phenomena in gas-liquid systems</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2021

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Minerals

ISSN

2075-163X

e-ISSN

2075-163X

Volume of the periodical

11

Issue of the periodical within the volume

5

Country of publishing house

CH - SWITZERLAND

Number of pages

13

Pages from-to

442

UT code for WoS article

000662451900001

EID of the result in the Scopus database

2-s2.0-85104423097