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Physics Journal, Vol.1, No.3, Nov. 2015, Pub. Date: Dec. 30, 2015
Mathematical Modeling of Self - Oscillations in the Combustion Chamber of Liquid Rocket Engine with Variable Latency Combustion
Pages: 343-348 Views: 992 Downloads: 875
[01] B. I. Basok, Department of Thermophysical Fundamentals of Energy-Saving Technologies, Institute of Engineering Thermal Physics of NAS of Ukraine, Kiev, Ukraine.
[02] V. V. Gotsulenko, Department of Thermophysical Fundamentals of Energy-Saving Technologies, Institute of Engineering Thermal Physics of NAS of Ukraine, Kiev, Ukraine.
Self-oscillations and certain of their regularities determined by solution of a system of differential equations with variable delay argument equations that is used in considering combustion instability in combustion chambers of liquid-propellant rocket engines are modeled mathematically. Periodic solutions of the system of equations of nonstationary motion of a medium in a liquid-propellant rocket engine were obtained, with the aid of which the possibility of lowering the amplitude of the longitudinal self-oscillations of vibration combustion or their complete removal has been substantiated. Analytically determined critical time delay combustion, above which a stationary combustion becomes unstable and self-excited oscillations.
Vibration Combustion, Instability, Self - Oscillation, Limiting Cycle, the Time Delay of Combustion
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