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Injection of a Cold Gas into a Snow Mass Partially Saturated with This Gas with Hydrate Formation

  • V. Sh. Shagapov
  • A. S. ChiglintsevaEmail author
  • S. V. Belova
Article
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The problem on the injection of a cold gas into a snow mass partially saturated with this gas, accompanied by hydrate formation, was solved numerically. The case where the rate of hydrate formation is limited by the diffusion of the gas through the hydrate layer, formed between the gas and ice phases, to the ice–hydrate contact boundary was considered. The formation of a hydrate by the equilibrium scheme, in accordance with which the state of the initial gas–snow system changes in the process of injection of a gas into it in line with the phase-equilibrium curve of the gas–snow–hydrate system, was investigated. It was established that, in the case of complete transformation of the show in a snow mass into the hydrate state in the process of hydrate formation in it under equilibrium conditions, in the snow mass there appears a moving boundary separating it into two zones: a zone saturated with the gas and the hydrate and a zone in which snow, the gas, and the hydrate are present at the same time.

Keywords

cold gas snow gas–snow system snow saturation fi ltration gas diffusion equilibrium scheme 

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© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  • V. Sh. Shagapov
    • 1
  • A. S. Chiglintseva
    • 1
    • 2
    Email author
  • S. V. Belova
    • 3
  1. 1.R. R. Mavlyutov Institute of Mechanics of the Ufa Federal Research Center, Russian Academy of SciencesUfaRussia
  2. 2.Ufa State Petroleum Technological UniversityUfaRussia
  3. 3.Birsk Branch of the Bashkir State UniversityBirskRussia

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