EXPERIMENTAL INVESTIGATIONS INTO IGNITION OF PROPELLANT CHARGES

Dejan Micković,
Slobodan Jaramaz

Abstract
The scope of this scientific-technical information is experimental the research of two-phase flow of granular propellant and propellant gases in the gun bore during interior the ballistic cycle.  The survey of existing devices for study of flamespreading through propellant charge, with their basic characteristics, is given. The study presents an original apparatus for experimental investigations of propellant charges ignition as well as a developed methodology for measuring flamespreading characteristic parameters enapling synchronisation of all measuring systems. The experimental results obtained in the apparatus during base ignition and ignition by the bayonet primer are presented. The experimental results of interior ballistic cycles of 100 mm APFSDS rounds obtained in the experimental gun are also given. The presented methodology enables an experimental characterisation of ignition process parameters in the phase of development of new propellant charges or during modifications of existing propellant charges.

Key words: ballistics, interior ballistics, propellant charge, granular propellant, ignition, propellant combustion, flamespreading, two-phase flow, gun barrel, experimental investigation.