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Processing of thermogram sequences to determine the rotation rate of a vortex flame |
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| Institution: | 1. Research Institute for Nuclear Problems, Belarusian State University, Bobruiskaya Str. 11, Minsk 220030, Belarus;2. National Research Tomsk State University, 36 Lenin Prospekt, Tomsk 634050, Russia;3. CIC energiGUNE, Albert Einstein 48, 01510 Minano, Alava, Spain;4. Institut für Materialphysik of Universität Göttingen, Friedrich-Hund-Platz 1, 37077 Göttingen, Germany;5. Institute of Photonics, University of Eastern Finland, P.O. Box 111, Joensuu FI-80101, Finland |
| Abstract: | We study vortex flame radiation in laboratory conditions. A fire torch was burning from a tank, which was fixed at the axis of uprising swirl airflow. Ethanol was used as a fuel. Processing of a sequence of thermograms of a swirling torch is described. The vortex flame revolutions were calculated using FFT of time pulsations of a signal from a thermal imaging system. |
| Keywords: | Vortex flame IR camera FFT processing signal |
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