Abstract
This paper presents an innovative tool for the study of flame instability phenomena based on high-speed imaging and image processing. The methodology underlying the system exploits the chemiluminescence radiation produced by the combustion reactions that occur in flames and which are detected by image sensors of high-speed cameras, speeds compatible with the oscillation frequencies of the phenomena we want to investigate. In general, for gas turbine burners the frequency range of interest varies from a few tens of Hz to a few hundred Hz. According to the author, the most innovative aspect of this methodology is that of providing the results of the analyzes in real time and not as a post-process activity. To achieve this result, most measurement analysis calculations are performed not on the CPU but on the GPU, drastically reducing calculation times and allowing the presentation of results in real time. Furthermore, the results presentation part provides a clear visualization of the oscillation modes of light intensity produced by the flame.
