The Numerical Investigation on the Relationship Between Hydrodynamic and Mass Transfer Gas Liquid of Dimutriscu-Taylor Bubble in a Small Diameter Pipe. Experimental Validation.

DOI
  • Bouhallassa Amar
    Université Frères Mentouri Constantine1, Faculté des Sciences Exacte, Département de Physique, Laboratoire de Physique Énergétique Centre de Développement des Energies Renouvelables CDER
  • Benattalah Samia
    Université Frères Mentouri Constantine1, Faculté des Sciences Exacte, Département de Physique, Laboratoire de Physique Énergétique

Description

The gas-liquid mass transfer has been studied for a single long bubble, which is kept stationary in the flow by a low and stable flow rate of liquid around it. This study was carried out for a downward flow in small diameter pipe. The mass transfer mechanism is quite complicated because it doesn't depend only on the physical properties of the gas; but also on the hydrodynamics of the bubble and the liquid film around it. Based on Hgbie's penetration theory a detailed numerical simulation of the hydrodynamic characteristics of the gas-liquid mass transfer in a vertical pipe is developed using the volume of fluid (VOF) method implemented in the commercial software ANSYS Fluent. The simulation is performed using three types of gas, which are nitrogen, oxygen, and carbon dioxide as the gas phase, and water as the liquid one. The results show that the mass transfer of gas increases as the length of the bubble does. For the three types of gas, the mass transfer coefficient increases with the decrease of the gas density. The numerical results are analogous with the experimental ones available in the literature.

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Keywords

Details 詳細情報について

  • CRID
    1390285697598947072
  • NII Article ID
    130007907637
  • DOI
    10.5293/ijfms.2020.13.3.646
  • ISSN
    18829554
  • Text Lang
    en
  • Data Source
    • JaLC
    • Crossref
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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