Nonlinear theory of combustion stability in liquid rocket engine based on chemistry dynamics  

作　　者：黄玉辉 王振国 周进 

出　　处：《Science China Chemistry》2002年第4期373-383,共11页中国科学（化学英文版）

基　　金：This work was supported by the National Natural Science Foundation of China (Grant No. 19882008).

摘　　要：Detailed models of combustion instability based on chemistry dynamics are developed. The results show that large activation energy goes against the combustion stability. The heat transfer coefficient between the wall and the combust gas is an important bifurcation parameter for the combustion instability. The acoustics modes of the chamber are in competition and cooperation with each other for limited vibration energy. Thermodynamics criterion of combustion stability can be deduced from the nonlinear thermodynamics. Correlations of the theoretical results and historical experiments indicate that chemical kinetics play a critical role in the combustion instability.Detailed models of combustion instability based on chemistry dynamics are developed. The results show that large activation energy goes against the combustion stability. The heat transfer coefficient between the wall and the combust gas is an important bifurcation parameter for the combustion instability. The acoustics modes of the chamber are in competition and cooperation with each other for limited vibration energy. Thermodynamics criterion of combustion stability can be deduced from the nonlinear thermodynamics. Correlations of the theoretical results and historical experiments indicate that chemical kinetics play a critical role in the combustion instability.

关 键 词：liquid ROCKET ENGINE COMBUSTION INSTABILITY nonlinear CHEMISTRY dynamics. 

分 类 号：V43[航空宇航科学与技术—航空宇航推进理论与工程]