Numerical Simulation on Thermoacoustic Instability in the Dump Combustor
덤프 연소기에서의 열음향 불안정에 관한 수치적 연구
- Published : 2005.10.06
Abstract
The instabilities in rocket engines and gas turbine combustors due to the interaction between the fluid flow (acoustics) and the heat transfer (thermal energy) are called thermoacoustic or combustion instabilities. Almost all analysis assumes constant hot section temperature for Modern mathematical analysis of acoustic oscillations in Rijke type devices. However, it is impossible to predict whether a system is stable or not because the flame or heater response model can have a dramatic effect on predicted growth rates. In this study, A standard