TY - GEN
T1 - Analysis of Hydrogen/Air Turbulent Premixed Flames at Different Karlovitz Numbers Using Computational Singular Perturbation
AU - Manias, Dimitrios
AU - Tingas, Alexandros
AU - Hernandez Perez, Francisco
AU - Im, Hong G.
AU - Galassi, Riccardo Malpica
AU - Ciottoli, Pietro Paolo
AU - Valorani, Mauro
N1 - KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: This work was sponsored by competitive research funding from King Abdullah University of Science and Technology (KAUST). MV also acknowledges the support of the Italian Ministry of University and Research (MIUR).
PY - 2018/1/7
Y1 - 2018/1/7
N2 - 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.
AB - 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.
UR - http://hdl.handle.net/10754/626959
UR - https://arc.aiaa.org/doi/10.2514/6.2018-0364
UR - http://www.scopus.com/inward/record.url?scp=85044408389&partnerID=8YFLogxK
U2 - 10.2514/6.2018-0364
DO - 10.2514/6.2018-0364
M3 - Conference contribution
SN - 9781624105241
BT - 2018 AIAA Aerospace Sciences Meeting
PB - American Institute of Aeronautics and Astronautics (AIAA)
ER -