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A study of the ignition and combustion of high-density charges under constant volume conditions

Vestnik Tomskogo gosudarstvennogo universiteta. Matematika i mekhanika, 2023-02 (81), p.123-132 [Peer Reviewed Journal]

ISSN: 1998-8621 ;EISSN: 2311-2255 ;DOI: 10.17223/19988621/81/11

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  • Title:
    A study of the ignition and combustion of high-density charges under constant volume conditions
  • Author: Rogaev, Konstantin S. ; D’yachkovskiy, Aleksey S. ; Ishchenko, Aleksandr N. ; Samorokova, Nina M. ; Stepanov, Evgeniy Yu ; Gimaeva, Natal’ya R.
  • Is Part Of: Vestnik Tomskogo gosudarstvennogo universiteta. Matematika i mekhanika, 2023-02 (81), p.123-132
  • Description: The study of combustion and ignition of charges with promising propellants or powder compositions in terms of initial conditions is an urgent problem of modern ballistics. Generally, combustion and ignition of charges are tested in a manometric closed vessel. The charge ignition conditions may affect the subsequent reactions. When designing a shot with a new charge, it is necessary to know what determines the moment of ignition (gas pressure, time, pressure rise rate, type of igniter, etc.) and which factor has a greater effect on the ignition. This paper presents a study of some features of high-density charge ignition under constant volume conditions. A brief description of the manometric setup is given. The effect of mass and type of igniter and combustion surface area on the high-density charge ignition and subsequent combustion is studied. The pressure-time dependences corresponding to high-density charge combustion in a textolite container with different diameters are presented and analyzed. The ignition of the paste high-density charge is revealed to be affected by the geometric dimensions of the container. The parametric experimental study results show that the ignition conditions of a model high-density propellant (MHDP) strongly depend on the method of initiation, namely the number of burning particles and ambient pressure; however, these factors do not affect the dependence of the MHDP combustion rate on pressure. The ignition momentum is obtained as a function of the ratio of the container burning surface circumference to the burning surface area.
  • Language: English
  • Identifier: ISSN: 1998-8621
    EISSN: 2311-2255
    DOI: 10.17223/19988621/81/11
  • Source: Math-Net.Ru (free access)
    ROAD: Directory of Open Access Scholarly Resources
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