On Stability of a Bubble Column

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985858%3A_____%2F13%3A00388399" target="_blank" >RIV/67985858:_____/13:00388399 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.cherd.2012.07.011" target="_blank" >http://dx.doi.org/10.1016/j.cherd.2012.07.011</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.cherd.2012.07.011" target="_blank" >10.1016/j.cherd.2012.07.011</a>

Result language
angličtina
Original language name
On Stability of a Bubble Column
Original language description
The governing equations based on the mass balance of the gas phase in the bubble column were formulated, together with the closures for the two typical operational regimes, homogeneous and heterogeneous. The equations were analysed for the steady state solutions and their stability. Two solutions were found for the uniform regime, one stable and one unstable. Only one stable solution was found for the nonuniform regime. These solutions were investigated as they depend on the control parameters, namely on the gas input, terminal bubble speed, and the form of the closure relations for the collective bubble speed. The two branches of the uniform solution merge in the turning point bifurcation, at large enough gas input. The nonuniform solution branch persists for all plausible parameter values. Besides these physically relevant solutions, one solution branch was identified as physically unacceptable. The physical reasons for the system stability were discussed. The linear approximation of
Czech name
—
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/GA104%2F07%2F1110" target="_blank" >GA104/07/1110: Hydrodynamics and transport phenomena in multiphase systems: from microscale to macroscale</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

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

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