Effect of condensed phase particles on the characteristics of the electromagnetic field of combustion products in the flow duct of a liquid-propellant engine. The results of experimental studies

This paper describes the experimental study of amplitude (with a frequency of up to 50 kHz) and integral characteristics of the self-magnetic field of high-temperature combustion products of hydrocarbon fuel, which flow out of the nozzle of a model liquid-propellant engine (LPE) with simulation of the heat of a combustion chamber with injection of aluminum-magnesium alloy particles (c-phase) into the combustion chamber. It is determined that the amplitude of the magnetic field intensity generated by high-temperature (up to 3500 K) combustion products depends on the LPE operation regimes and the presence of c-phase particles in the particle flow. The magnetic field amplitude increases by 20% during the LPE burnout $\approx$ 0.2 s earlier than the pressure drop in the combustion chamber. The total volumetric electric charge generated by the combustion product flow with the c-phase is estimated.