Effect of Distributed Injection of Air into the Afterburning Chamber of a Ram-Rocket Engine on the Efficiency of Combustion of Boron Particles
S. A. Rashkovskii1, Yu. M. Milekhin2, A. V. Fedorychev2
a:2:{s:4:"TYPE";s:4:"HTML";s:4:"TEXT";s:202:"1Ishlinsky Institute for Problems in Mechanics, Russian Academy of Sciences, Moscow, 119526 Russia
2Federal Center for Dual-Use Technologies “Soyuz”, Dzerzhinskii, 140090 Rissia";}
Keywords: ракетно-прямоточный двигатель, частицы бора, горение, полнота сгорания, распределенный подвод воздуха, ram-rocket engine, boron particles, combustion, combustion efficiency, distributed injection of air
Abstract
A mathematical model of combustion of boron particles in a ram-rocket engine is developed. The boron combustion efficiency for one-stage and two-stage injection of air into the afterburning chamber is calculated. It is demonstrated that two-stage injection of air sometimes allows the time of complete combustion of boron particles to be significantly reduced (by a factor of 1.5-3); thus, the fuel combustion efficiency in the ram-rocket engine can be increased. The simulated results are consistent with available experimental data.
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