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Igniter Function: Experimental and Theoretical Studies
Author(s) -
Micković Dejan,
Jaramaz Slobodan
Publication year - 2010
Publication title -
propellants, explosives, pyrotechnics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.56
H-Index - 65
eISSN - 1521-4087
pISSN - 0721-3115
DOI - 10.1002/prep.200910012
Subject(s) - propellant , ignition system , materials science , combustion , mechanics , internal ballistics , charge (physics) , specific impulse , nuclear engineering , aerospace engineering , thermodynamics , physics , chemistry , engineering , organic chemistry , quantum mechanics
Igniters are elements of the ignition system of granular propellant charges, which have to give prescribed energetic impulse to charges. This paper includes theoretical and experimental investigations of ignition of propellant charge by igniter. The theoretical studies comprise modelling of two‐phase flow of black powder grains and their combustion products in the igniter. The interaction of igniter efflux generated by two‐phase flow of black powder in the igniter with the two‐phase flow in propellant chamber with granular propellant charge is considered. The experimental investigations of igniter function in open air and in live propellant charge placed in fibreglass propellant chambers are performed. Influence of igniter characteristics on the ignition of propellant charge is established. Verification of the developed theoretical model by the comparison with experimental data is carried out. The presented theoretical–experimental access enables the choice of optimum igniter for ignition of propellant charge.