Flame interaction identification in turbulent premixed flames
D Brouzet, A Haghiri, T Kulkarni, M TALEI, MJ Brear, ER Hawkes, Y Yang (ed.), N Smith (ed.)
Proceedings of the Australian Combustion Symposium | The Combustion Institute Australia & New Zealand Section | Published : 2015
An efficient formulation of the method of Griffiths et al.  is used to identify premixed flame interactions. This method identifies flame interactions by finding critical points in the progress variable field, and is applied to a DNS dataset featuring sound generation by a premixed jet flame. The results show that different types of flame interaction events occur, including tunnel formation, tunnel closure and pocket burn-out. A large number of these events occur close to the flame tip. The developed method, optimised for parallel processing, will be used to gain a detailed understanding of sound generation in turbulent premixed flames in future studies.