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

doi:10.2514/6.2018-0364

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 proceeding › Conference contribution

13 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 language	English (US)
Title of host publication	2018 AIAA Aerospace Sciences Meeting
Publisher	American Institute of Aeronautics and Astronautics (AIAA)
ISBN (Print)	9781624105241
DOIs	https://doi.org/10.2514/6.2018-0364
State	Published - Jan 7 2018

Bibliographical note

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).

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10.2514/6.2018-0364

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Manias, D., Tingas, A., Hernandez Perez, F., Im, H. G., Galassi, R. M., Ciottoli, P. P., & Valorani, M. (2018). Analysis of Hydrogen/Air Turbulent Premixed Flames at Different Karlovitz Numbers Using Computational Singular Perturbation. In 2018 AIAA Aerospace Sciences Meeting American Institute of Aeronautics and Astronautics (AIAA). https://doi.org/10.2514/6.2018-0364

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

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.",

author = "Dimitrios Manias and Alexandros Tingas and {Hernandez Perez}, Francisco and Im, {Hong G.} and Galassi, {Riccardo Malpica} and Ciottoli, {Pietro Paolo} and Mauro Valorani",

note = "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).",

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Analysis of Hydrogen/Air Turbulent Premixed Flames at Different Karlovitz Numbers Using Computational Singular Perturbation. / Manias, Dimitrios; Tingas, Alexandros; Hernandez Perez, Francisco et al.
2018 AIAA Aerospace Sciences Meeting. American Institute of Aeronautics and Astronautics (AIAA), 2018.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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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.

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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 -

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

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