Technology for Transient Simulation of Vibration during Combustion Process in Rocket Thruster

2017 International Conference on Aerospace Technology, Communications and Energy Systems

航空航天工程;无线电电子学;能源学

Zubanov, V.M.^1 ; Stepanov, D.V.^1 ; Shabliy, L.S.^1

Samara National Research University, Moskovskoe shosse st. 34, Samara, Russia^1

关键词: Combustion components;    Combustion pro-cess;    Combustion simulations;    Reaction mechanism;    Rocket thrusters;    Simulation technique;    Transient simulation;    Vibration frequency;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/302/1/012023/pdf
DOI  :  10.1088/1757-899X/302/1/012023

学科分类：航空航天科学

来源: IOP

【 摘 要 】

The article describes the technology for simulation of transient combustion processes in the rocket thruster for determination of vibration frequency occurs during combustion. The engine operates on gaseous propellant: oxygen and hydrogen. Combustion simulation was performed using the ANSYS CFX software. Three reaction mechanisms for the stationary mode were considered and described in detail. The way for obtaining quick CFD-results with intermediate combustion components using an EDM model was found. The way to generate the Flamelet library with CFX-RIF was described. A technique for modeling transient combustion processes in the rocket thruster was proposed based on the Flamelet library. A cyclic irregularity of the temperature field like vortex core precession was detected in the chamber. Frequency of flame precession was obtained with the proposed simulation technique.