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
A. V. Rudinskii1,2, V. I. Lapitskii1, D. A. Yagodnikov1
1Bauman Moscow State Technical University, Moscow, 105005 Russia
2Baranov Central Institute of Aviation Motor Development, Moscow, 111116 Russia
Keywords: углеводородное горючее, продукты сгорания, электромагнитное поле, заряд струи, hydrocarbon fuel, combustion products, electromagnetic field, jet charge
Abstract
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 (k-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 k-phase particles in the particle flow. The magnetic field amplitude increases by 20% during the LPE burnout ~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 k-phase is estimated.
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