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Dulin, V. M. (author), Lobasov, A. S. (author), Chikishev, L. M. (author), Markovich, D. M. (author), Hanjalic, K. (author)We report on a study of the impact of coherent helical vortex structures on the shape of the reaction zone and heat release in swirling methane/air flames in regimes with a vortex breakdown. Three kinds of atmospheric flames are considered, viz., fuel-lean and fuel-rich premixed flames and a partially premixed fuel-rich lifted flame. Based on...journal article 2019