Influence of the methods of energy action on deflagration-to-detonation transition

The results of experimental gas-detonation investigations carried out in the past decade at the Department of Physical Gasdynamics of the Joint Institute of High Temperatures of the Russian Academy of Sciences (JIHT RAS) in connection with the problems of creation of a pulse detonation engine have been presented. Consideration has been given to the influence of the shape of injectors on the formation of detonation in a gas flow with separate feed of the fuel and the oxidant, the influence of acoustic action on the ignition region, reduction in the predetonation length in the flow of a mixture capable of detonation, and improvement in the efficiency of electric-discharge initiation of detonation by the self-magnetic and induced external magnetic field.