The present work is devoted to the experimental study of the acoustic forcing effect on premixed non-swirling and swirling jet flames. A cycle of visualisation by ICCD camera and stereo PIV measurements were carried out for the most representative cases of the forced turbulent flames. For the first time it is demonstrated that the high-amplitude periodical forcing of the strongly swirling turbulent flame with breakdown of vortex core can affect the combustion rate in the initial region of the flame. Moreover, it also suppresses the precession of the stagnation point of the recirculation zone.
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