Analysis of Hydrogen/Air Turbulent Premixed Flames at Different Karlovitz Numbers Using Computational Singular Perturbation

Dimitrios Manias, Alexandros Tingas, Francisco Hernandez Perez, Hong G. Im, Riccardo Malpica Galassi, Pietro Paolo Ciottoli, Mauro Valorani

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

11 Scopus citations

Abstract

The dynamics and structure of two turbulent H2/air premixed flames, representative of the corrugated flamelet (Case 1) and thin reaction zone (Case 2) regimes, are analyzed and compared, using the computational singular perturbation (CSP) tools, by incorporating the tangential stretch rate (TSR) approach. First, the analysis is applied to a laminar premixed H2/air flame for reference. Then, a two-dimensional (2D) slice of Case 1 is studied at three time steps, followed by the comparison between two representative 2D slices of Case 1 and Case 2, respectively. Last, statistical analysis is performed on the full three-dimensional domain for the two cases. The dominant reaction and transport processes are identified for each case and the overall role of kinetics/transport is determined.
Original languageEnglish (US)
Title of host publication2018 AIAA Aerospace Sciences Meeting
PublisherAmerican Institute of Aeronautics and Astronautics (AIAA)
ISBN (Print)9781624105241
DOIs
StatePublished - Jan 7 2018

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