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KIAM Preprint № 143, Moscow, 2017
Authors: Semenov I.V., Men'shov I.S., Nemtsev M.Y.
Mathematical modeling of the axisymmetric internal ballistics processes
Abstract:
Mathematical model and numerical method for investigating the internal ballistics process in a two-dimensional axisymmetric formulation are described. The gas-powder mixture is modeled by a two-phase nonequilibrium heterogeneous medium consisting of a multicomponent gas phase of the combustion products and a polydisperse condensed phase of the charge elements. A numerical method of the Godunov’s type is proposed for solving the non-conservative system of Euler equations. To calculate the displacement of the body being thrown, the free boundary method is used for the system of equations of two-phase hydrodynamics. The results of an investigation of the wave interior ballistics process during the combustion of a modular charge are presented.
Keywords:
mathematical model of the two-phase nonequilibrium heterogeneous mixture, internal ballistics, burning of modular propellant charges
Publication language: russian,  pages: 20
Research direction:
Mathematical modelling in actual problems of science and technics
Russian source text:
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About authors:
  • Semenov Ilya Vitalievich,  orcid.org/0000-0002-7757-1405,  Институт автоматизации проектирования РАН
  • Men'shov Igor Stanislavovich,  orcid.org/0000-0003-2300-4007KIAM RAS
  • Nemtsev Maksim Yurievich,  ,  Институт автоматизации проектирования РАН