Математическое моделирование возникновения пульсаций давления в камерах сгорания РДТТ сложной конфигурации К. Н. Жильцов, К. В. Костюшин, В. А. Котоногов
Material type:
ArticleOther title: Mathematical modeling of pressure oscillation in the combustion chambers of solid rocket motors [Parallel title]Subject(s): камеры сгорания | ракетные двигатели на твердом топливе | вихревые структуры | потоки газа | вихревая динамика | численное моделированиеGenre/Form: статьи в сборниках Online resources: Click here to access online
In:
Перспективы развития фундаментальных наук. Т. 3 : сборник научных трудов XV Международной конференции студентов, аспирантов и молодых ученых, 24-27 апреля 2018 г Т. 3 : Математика. С. 43-45Abstract: Numerical simulation of the flow instability and pressure self-oscillations for complex configurations of solid fuel charges in the combustion chamber are carried out. Calculation of the combustion products in combustion chamber was carried out with constant mass inflow in two-phase Navier-Stokes equations for a compressible medium. Large-eddy simulations (LES) turbulent model are implemented to study the oscillation flow field. According to fast Fourier transform the spectrum of pressure oscillations in the combustion chamber is determine. It is shown that the complex geometry of solid fuel charge can lead to the occurrence of low- frequency oscillations in the range of natural frequencies of the combustion chamber.
Библиогр.: 10 назв.
Numerical simulation of the flow instability and pressure self-oscillations for complex configurations of solid fuel charges in the combustion chamber are carried out. Calculation of the combustion products in combustion chamber was carried out with constant mass inflow in two-phase Navier-Stokes equations for a compressible medium. Large-eddy simulations (LES) turbulent model are implemented to study the oscillation flow field. According to fast Fourier transform the spectrum of pressure oscillations in the combustion chamber is determine. It is shown that the complex geometry of solid fuel charge can lead to the occurrence of low- frequency oscillations in the range of natural frequencies of the combustion chamber.
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