Unsteady behaviour of bubble column in homogeneous flow regime: Startup and shutdown
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985858%3A_____%2F23%3A00572103" target="_blank" >RIV/67985858:_____/23:00572103 - isvavai.cz</a>
Result on the web
<a href="https://hdl.handle.net/11104/0342929" target="_blank" >https://hdl.handle.net/11104/0342929</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.ces.2023.118806" target="_blank" >10.1016/j.ces.2023.118806</a>
Alternative languages
Result language
angličtina
Original language name
Unsteady behaviour of bubble column in homogeneous flow regime: Startup and shutdown
Original language description
The startup (engagement, EN) and shutdown (disengagement, DE) processes in the bubble column are investigated both experimentally and theoretically. Two horizontal interfaces, top and bottom, characterize the evolving bubble bed. Their motion is explored by measurements in a laboratory air–water bubble column operated in the homogeneous flow regime (HoR). The effect of two control parameters is determined: clear liquid height L and gas superficial velocity q. The following results are obtained: the trajectories of the top and bottom interfaces, the duration of the early and late stages of EN, the coordinate points of the typical events of the bubble bed dynamics, the bubble swarm velocities related to the interfaces, the characteristic time scales, the symmetry features of EN and DE processes, the parametric dependence on L and q. A simple mathematical model is suggested to describe and interpret the experimental data. n
Czech name
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Czech description
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Classification
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
Result continuities
Project
<a href="/en/project/GA19-09518S" target="_blank" >GA19-09518S: Dynamics of unsteady phenomena in gas-liquid systems</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Chemical Engineering Science
ISSN
0009-2509
e-ISSN
1873-4405
Volume of the periodical
277
Issue of the periodical within the volume
AUG 5
Country of publishing house
GB - UNITED KINGDOM
Number of pages
14
Pages from-to
118806
UT code for WoS article
001008739100001
EID of the result in the Scopus database
2-s2.0-85159422926