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CFD Simulation of a Sub-Millimeter Rising Bubble in a Stagnant Liquid

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F20%3A43921245" target="_blank" >RIV/60461373:22340/20:43921245 - isvavai.cz</a>

  • Result on the web

    <a href="https://doi.org/10.14311/TPFM.2020.005" target="_blank" >https://doi.org/10.14311/TPFM.2020.005</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.14311/tpfm.2020.005" target="_blank" >10.14311/tpfm.2020.005</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    CFD Simulation of a Sub-Millimeter Rising Bubble in a Stagnant Liquid

  • Original language description

    Hydrodynamics of the multiphase apparatus is strongly affected by fluids used in the process. One of the main quantities, which determine the hydrodynamic behaviour is the rising velocity of gaseous bubbles. This velocity can be determined easily in small scale apparatuses, but it can be much more challenging in industrial-scale devices. For that reason, mathematical modeling is used. COMSOL Multiphysics, finite element CFD solver, was used to describe the behaviour of the single bubble rising in aqueous solutions of ethanol and n-propanol. Aqueous solutions of low-carbon alcohols are extensively used in many multiphase chemical processes such as distillation, flotation and in multiphase reactors. Bubble velocities and shapes obtained from the simulation were compared to experimental and theoretical values. Two initial diameters of bubbles were used – 0.6 and 0.8 mm. Terminal velocities and shapes deformations obtained from COMSOL of 0.6 mm bubble were in an agreement with theoretical and experimental values.

  • Czech name

  • Czech description

Classification

  • Type

    D - Article in proceedings

  • CEP classification

  • OECD FORD branch

    20401 - Chemical engineering (plants, products)

Result continuities

  • 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)

Others

  • Publication year

    2020

  • Confidentiality

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

Data specific for result type

  • Article name in the collection

    Proceedings Topical Problems of Fluid Mechanics 2020

  • ISBN

    978-80-87012-74-1

  • ISSN

    2336-5781

  • e-ISSN

  • Number of pages

    7

  • Pages from-to

    35

  • Publisher name

    Ústav termomechaniky AV ČR, v.v.i.

  • Place of publication

    Praha

  • Event location

    Praha

  • Event date

    Feb 19, 2020

  • Type of event by nationality

    EUR - Evropská akce

  • UT code for WoS article