Library Subscription: Guest
Begell Digital Portal Begell Digital Library eBooks Journals References & Proceedings Research Collections
International Journal of Energetic Materials and Chemical Propulsion
ESCI SJR: 0.142 SNIP: 0.16 CiteScore™: 0.29

ISSN Print: 2150-766X
ISSN Online: 2150-7678

International Journal of Energetic Materials and Chemical Propulsion

DOI: 10.1615/IntJEnergeticMaterialsChemProp.v5.i1-6.830
pages 793-802

NONLINEAR COMBUSTION IN SOLID PROPELLANT ROCKET MOTORS

B. V. Novozhilov
Institute of Chemical Physics, Russian Academy of Sciences, Moscow, Russia

ABSTRACT

The combustion-acoustics problem in combustion chambers is examined in the framework of nonlinear acoustics and nonlinear propellant burning response to varying pressure. As an example, a combustion chamber having a rigid head-end and an aft-end nozzle is considered. To reduce a number of governing parameters, the simplest propellant model is used. The first two longitudinal acoustic modes are considered with the second-order acoustics and combustion non-linearity. To write boundary conditions for an acoustic field at the propellant surface, the idea of nonlinear gas velocity response functions to oscillatory pressure is used. A set of the governing differential equations is obtained for the complex amplitudes of the acoustic modes. These equations are analyzed to obtain the possible limit cycles and to study their stability. Numerical calculations are performed to find the amplitude-time history that may include triggering phenomena. It has been shown when both acoustic non-linearity and non-linearity of solid propellant burning rate response to oscillatory pressure are considered new qualitative effects arise as compared to the case when only acoustic non-linearity is accounted for.


Articles with similar content:

SUSTAINABILITY OF OSCILLATIONS IN A SIMPLEST PULSATING HEAT PIPE (PHP)
Multiphase Science and Technology, Vol.30, 2018, issue 2-3
Shyama Prasad Das, Utsav Bhardwaj
CFD ANALYSES OFLOW FREQUENCYCOMBUSTION INSTABILITYIN SOLID PROPELLANT ROCKET MOTORS
International Journal of Energetic Materials and Chemical Propulsion, Vol.6, 2007, issue 4
M. Hanzawa, Takakazu Morita, Toru Shimada
RELATIONSHIP BETWEEN PRESSURE AND THRUST OSCILLATIONS
International Journal of Energetic Materials and Chemical Propulsion, Vol.10, 2011, issue 6
Fred S. Blomshield
INVESTIGATION OF THE STATICS AND FREE VIBRATIONS OF CYLINDRICAL SHELLS ON THE BASIS OF A NONCLASSICAL THEORY
Composites: Mechanics, Computations, Applications: An International Journal, Vol.6, 2015, issue 2
T. N. Doan, V. V. Firsanov
VIBROACOUSTIC PROCESSES MODELING IN THE TURBOJET ENGINE AND OTHER POWER PLANT UNITS BASED ON FREQUENCY CHARACTERISTICS INVESTIGATION OF THE “ENGINE-MOUNTING-AIRFRAME” SYSTEM
TsAGI Science Journal, Vol.41, 2010, issue 1
V. S. Baklanov