1. Figures 7 and 8 show OH-PLIF data for the combustion chamber top half (rectangles 1-5) at νSEO=200 Hz and νSEO=510 Hz, respectively. It is striking that in the case of νSEO=200 Hz the intensity increase toward the peak near a phase angle of approximately 120° is much steeper than the one around a phase angle of approximately 110° at νSEO=510 Hz. In contrast to this though, the intensity decrease then takes place comparatively slow at νSEO=200Hz,almost linearly. Depending on the frequency, the highest values are also measured at different areas in the combustion chamber.
2. The calculation of thermoacoustic oscillations
3. Structure and Control of Thermoacoustic Instabilities in a Gas-turbine Combustor
4. Prediction and control of combustion instabilities in industrial gas turbines