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Journal of Applied Mechanics and Technical Physics

, Volume 58, Issue 6, pp 1063–1068 | Cite as

Initial Stage of Modeling of the Magma State in a Slot Volcano with a Finite Velocity of Diaphragm Opening

  • M. N. Davydov
  • V. K. Kedrinskii
Article
  • 16 Downloads

Abstract

Results of a numerical analysis of the dynamic behavior of a compressed magma melt in a slot channel with gradual opening of the diaphragm and results of simulations of its time evolution are reported. The Iordanskii–Kogarko–van Vijngaarden mathematical model of a twophase medium and a model that describes phase changes in the gas-saturated plasma behind the front of the decompression wave being formed are used. Results of numerical simulations of the flow with allowance for specific features of the pressure dynamics in the decompression wave, mass velocity components, volume fraction of the gas phase, and its viscosity are presented.

Keywords

slot volcano eruption crack magma melt decompression cavitation viscosity 

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Copyright information

© Pleiades Publishing, Ltd. 2017

Authors and Affiliations

  1. 1.Lavrent’ev Institute of Hydrodynamics, Siberian BranchRussian Academy of SciencesNovosibirskRussia

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