Collision of a small rising bubble with a large falling particle

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F13%3A43895933" target="_blank" >RIV/60461373:22340/13:43895933 - isvavai.cz</a>
Alternative codes found
RIV/67985858:_____/13:00392128
Result on the web
<a href="http://dx.doi.org/10.1016/j.minpro.2013.02.013" target="_blank" >http://dx.doi.org/10.1016/j.minpro.2013.02.013</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.minpro.2013.02.013" target="_blank" >10.1016/j.minpro.2013.02.013</a>

Result language
angličtina
Original language name
Collision of a small rising bubble with a large falling particle
Original language description
While mineral flotation deals with fine particles and larger bubbles, this work is focused on the opposite case of an interaction of a single rising bubble with a larger spherical particle, which falls down through a stagnant liquid. The collision is studied theoretically and experimentally. The theoreticalmodel, based on an analysis of forces acting on the bubble, leads to a differential equation for the bubblemotion. Both themobile and immobile bubble surfaces are considered. The experimental bubble trajectory and velocity evolution are in good agreement with the theoretical model. The horizontal deflection of the bubble trajectory caused by the particle motion is dependent on the ratio of bubble terminal velocity and particle settling velocity. Theinfluence of buoyancy, interception and inertial mechanisms on the collision efficiency is also examined. It is concluded that the buoyancy is the most significant mechanism for the interaction of small bubbles with large particles.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CI - Industrial chemistry and chemical engineering
OECD FORD branch
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Project
<a href="/en/project/GAP101%2F11%2F0806" target="_blank" >GAP101/11/0806: Effect of surfactants on the multiphase flow dynamics</a><br>
Continuities
S - Specificky vyzkum na vysokych skolach

Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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