164980 20251204150238.0 doi 10.1007/s10494-015-9686-1 sideral 92735 ART-2016-92735 eng Cifuentes, L. Effects of the Local Flow Topologies Upon the Structure of a Premixed Methane-air Turbulent Jet Flame 2016 Local flow topologies have been identified and their interactions with the iso-scalar surfaces geometries have been investigated using the results of a three-dimensional direct numerical simulation (DNS) of a turbulent premixed methane-air flame in a piloted Bunsen burner configuration with tabulated chemistry. The universal teardrop shape of the joint probability density function (jpdf) of the second and third invariants of the velocity-gradient tensor disappears in the different flame regions under study. A ‘canonical’ vortex, which affects the fine-scale structure of the turbulent premixed flame, has been identified and analyzed at three times, differing by increments of the order of the Kolmogorov time micro-scale. info:eu-repo/semantics/closedAccess All rights reserved http://www.europeana.eu/rights/rr-f/ 1.775 2016 THERMODYNAMICS 24 / 58 = 0.414 2016 Q2 T2 MECHANICS 57 / 133 = 0.429 2016 Q2 T2 0.731 2016 Chemical Engineering (miscellaneous) 2016 Q1 Physics and Astronomy (miscellaneous) 2016 Q2 Physical and Theoretical Chemistry 2016 Q2 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Dopazo, C. Universidad de Zaragoza (orcid)0000-0002-2267-8598 Martin, J. Universidad de Zaragoza (orcid)0000-0003-3908-0493 Domingo, P. Vervisch, L. 5001 600 Universidad de Zaragoza Dpto. Ciencia Tecnol.Mater.Fl. Área Mecánica de Fluidos 96 (2016), 535–546 Flow turbul. combust. Flow, Turbulence and Combustion 1386-6184 3575277 http://zaguan.unizar.es/record/164980/files/texto_completo.pdf Versión publicada 1212015 http://zaguan.unizar.es/record/164980/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:164980 articulos driver 2025-12-04-14:38:38 ARTICLE