Dissipation Element analysis of premixed jet flames

D. Denker, A. Attili, S. Luca, F. Bisetti, H. Pitsch

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Dissipation element analysis is a method for analyzing scalar fields in turbulent flows. Dissipation elements are defined as a coherent region, in which all gradient trajectories of a scalar field reach the same extremal points. Therefore, the scalar field can be compartmentalized in monotonous space filling regions. The dissipation element analysis is applied to a set of spatial evolving premixed jet flames at different Reynolds numbers. The simulations feature finite rate chemistry with 16 species and 73 reactions. The jet consists of a methane/air mixture with an
equivalence ratio φ = 0.7.
Marginal statistics of dissipation element parameters are shown and compared to those of a DNS of a non-reacting spatial jet. In addition, the correlation between the local flame structure and dissipation elements is investigated.
Original languageEnglish
Title of host publicationProceedings of Joint Meeting of the German and Italian Sections of the Combustion Institute, Sorrento, Italy
Publication statusPublished - 2018
Event41st Meeting of the Italian Section of The Combustion Institute - Sorento, Italy
Duration: 23 May 201826 May 2018
http://www.combustion-institute.it/proceedings/XXXXI-ASICI/XXXXI-ASICI.html

Conference

Conference41st Meeting of the Italian Section of The Combustion Institute
Country/TerritoryItaly
CitySorento
Period23/05/1826/05/18
Internet address

Keywords

  • confpaper

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