KIAM Main page Web Library  •  Publication Searh   
Publication

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 Godunovs 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,  : 20
Research direction:
Mathematical modelling in actual problems of science and technics
Russian source text:
View statistics (updated once a day)
over the last 30 days 9 (+3), total hit from 01.09.2019 104