Towards the distributed burning regime in turbulent premixed flames
Abstract
Three-dimensional numerical simulations of canonical statistically steady, statistically planar turbulent flames have been used in an attempt to produce distributed burning in lean methane and hydrogen flames. Dilatation across the flame means that extremely large Karlovitz numbers are required; even at the extreme levels of turbulence studied (up to a Karlovitz number of 8767) distributed burning was only achieved in the hydrogen case. In this case, turbulence was found to broaden the reaction zone visually by around an order of magnitude, and thermodiffusive effects (typically present for lean hydrogen flames) were not observed. In the preheat zone, the species compositions differ considerably from those of one-dimensional flames based a number of different transport models (mixture averaged, unity Lewis number and a turbulent eddy viscosity model). The behaviour is a characteristic of turbulence dominating non-unity Lewis number species transport, and the distinct limit is again attributed to dilatation and its effect on the turbulence. Peak local reaction rates are found to be lower in the distributed case than in the lower Karlovitz cases but higher than in the laminar flame, which is attributed to effects that arise from the modified fuel-temperature distribution that results from turbulent mixing dominating low Lewis numbermore »
- Authors:
-
- Newcastle Univ. (United Kingdom). School of Engineering; Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Center for Computational Sciences and Engineering
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Center for Computational Sciences and Engineering
- Publication Date:
- Research Org.:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). National Energy Research Scientific Computing Center (NERSC)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1526713
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Journal of Fluid Mechanics
- Additional Journal Information:
- Journal Volume: 871; Journal ID: ISSN 0022-1120
- Publisher:
- Cambridge University Press
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING
Citation Formats
Aspden, A. J., Day, M. S., and Bell, J. B. Towards the distributed burning regime in turbulent premixed flames. United States: N. p., 2019.
Web. doi:10.1017/jfm.2019.316.
Aspden, A. J., Day, M. S., & Bell, J. B. Towards the distributed burning regime in turbulent premixed flames. United States. doi:10.1017/jfm.2019.316.
Aspden, A. J., Day, M. S., and Bell, J. B. Thu .
"Towards the distributed burning regime in turbulent premixed flames". United States. doi:10.1017/jfm.2019.316. https://www.osti.gov/servlets/purl/1526713.
@article{osti_1526713,
title = {Towards the distributed burning regime in turbulent premixed flames},
author = {Aspden, A. J. and Day, M. S. and Bell, J. B.},
abstractNote = {Three-dimensional numerical simulations of canonical statistically steady, statistically planar turbulent flames have been used in an attempt to produce distributed burning in lean methane and hydrogen flames. Dilatation across the flame means that extremely large Karlovitz numbers are required; even at the extreme levels of turbulence studied (up to a Karlovitz number of 8767) distributed burning was only achieved in the hydrogen case. In this case, turbulence was found to broaden the reaction zone visually by around an order of magnitude, and thermodiffusive effects (typically present for lean hydrogen flames) were not observed. In the preheat zone, the species compositions differ considerably from those of one-dimensional flames based a number of different transport models (mixture averaged, unity Lewis number and a turbulent eddy viscosity model). The behaviour is a characteristic of turbulence dominating non-unity Lewis number species transport, and the distinct limit is again attributed to dilatation and its effect on the turbulence. Peak local reaction rates are found to be lower in the distributed case than in the lower Karlovitz cases but higher than in the laminar flame, which is attributed to effects that arise from the modified fuel-temperature distribution that results from turbulent mixing dominating low Lewis number thermodiffusive effects. Finally, approaches to achieve distributed burning at realisable conditions are discussed; factors that increase the likelihood of realising distributed burning are higher pressure, lower equivalence ratio, higher Lewis number and lower reactant temperature.},
doi = {10.1017/jfm.2019.316},
journal = {Journal of Fluid Mechanics},
number = ,
volume = 871,
place = {United States},
year = {2019},
month = {7}
}
Web of Science
Works referenced in this record:
Finite Rate Chemistry Effects in Highly Sheared Turbulent Premixed Flames
journal, July 2010
- Dunn, Matthew J.; Masri, Assaad R.; Bilger, Robert W.
- Flow, Turbulence and Combustion, Vol. 85, Issue 3-4
The interaction of high-speed turbulence with flames: Global properties and internal flame structure
journal, May 2010
- Poludnenko, A. Y.; Oran, E. S.
- Combustion and Flame, Vol. 157, Issue 5
Turbulence–flame interactions in lean premixed dodecane flames
journal, January 2017
- Aspden, A. J.; Bell, J. B.; Day, M. S.
- Proceedings of the Combustion Institute, Vol. 36, Issue 2
Turbulence–flame interactions in lean premixed hydrogen: transition to the distributed burning regime
journal, May 2011
- Aspden, A. J.; Day, M. S.; Bell, J. B.
- Journal of Fluid Mechanics, Vol. 680
Broken reaction zone and differential diffusion effects in high Karlovitz n-C7H16 premixed turbulent flames
journal, May 2015
- Savard, Bruno; Blanquart, Guillaume
- Combustion and Flame, Vol. 162, Issue 5
Thin reaction zone and distributed reaction zone regimes in turbulent premixed methane/air flames: Scalar distributions and correlations
journal, January 2017
- Zhou, Bo; Brackmann, Christian; Wang, Zhenkan
- Combustion and Flame, Vol. 175
Direct numerical simulation of a high Ka CH4/air stratified premixed jet flame
journal, July 2018
- Wang, Haiou; Hawkes, Evatt R.; Savard, Bruno
- Combustion and Flame, Vol. 193
DISTRIBUTED FLAMES IN TYPE Ia SUPERNOVAE
journal, February 2010
- Aspden, A. J.; Bell, J. B.; Woosley, S. E.
- The Astrophysical Journal, Vol. 710, Issue 2
Turbulence‐Flame Interactions in Type Ia Supernovae
journal, December 2008
- Aspden, A. J.; Bell, J. B.; Day, M. S.
- The Astrophysical Journal, Vol. 689, Issue 2
A deferred correction coupling strategy for low Mach number flow with complex chemistry
journal, December 2012
- Nonaka, A.; Bell, J. B.; Day, M. S.
- Combustion Theory and Modelling, Vol. 16, Issue 6
A numerical study of diffusive effects in turbulent lean premixed hydrogen flames
journal, January 2017
- Aspden, A. J.
- Proceedings of the Combustion Institute, Vol. 36, Issue 2
The evolution equation for the flame surface density in turbulent premixed combustion
journal, November 1994
- Trouvé, Arnaud; Poinsot, Thierry
- Journal of Fluid Mechanics, Vol. 278
Direct numerical simulation of H 2 /O 2 /N 2 flames with complex chemistry in two-dimensional turbulent flows
journal, December 1994
- Baum, M.; Poinsot, T. J.; Haworth, D. C.
- Journal of Fluid Mechanics, Vol. 281
Unsteady strain rate and curvature effects in turbulent premixed methane-air flames
journal, July 1996
- Echekki, Tarek; Chen, Jacqueline H.
- Combustion and Flame, Vol. 106, Issue 1-2
Differential diffusion effects, distributed burning, and local extinctions in high Karlovitz premixed flames
journal, September 2015
- Lapointe, Simon; Savard, Bruno; Blanquart, Guillaume
- Combustion and Flame, Vol. 162, Issue 9
Theory of turbulent combustion of a homogeneous fuel mixture at high reynolds numbers
journal, January 1979
- Zimont, V. L.
- Combustion, Explosion, and Shock Waves, Vol. 15, Issue 3
Numerical simulation of laminar reacting flows with complex chemistry
journal, December 2000
- Day, M. S.; Bell, J. B.
- Combustion Theory and Modelling, Vol. 4, Issue 4
Lewis number effects in distributed flames
journal, January 2011
- Aspden, A. J.; Day, M. S.; Bell, J. B.
- Proceedings of the Combustion Institute, Vol. 33, Issue 1
Three-dimensional direct numerical simulation of turbulent lean premixed methane combustion with detailed kinetics
journal, April 2016
- Aspden, A. J.; Day, M. S.; Bell, J. B.
- Combustion and Flame, Vol. 166
Optimized Transport Algorithms for Flame Codes
journal, October 1996
- Ern, Alexandre; Giovangigli, Vincent
- Combustion Science and Technology, Vol. 118, Issue 4-6
An updated comprehensive kinetic model of hydrogen combustion
journal, January 2004
- Li, Juan; Zhao, Zhenwei; Kazakov, Andrei
- International Journal of Chemical Kinetics, Vol. 36, Issue 10
Stretch effects on the burning velocity of turbulent premixed hydrogen/air flames
journal, January 2000
- Chen, Jacqueline B.; Im, Hong G.
- Proceedings of the Combustion Institute, Vol. 28, Issue 1
Structures of turbulent premixed flames in the high Karlovitz number regime – DNS analysis
journal, March 2018
- Nilsson, Thommie; Carlsson, Henning; Yu, Rixin
- Fuel, Vol. 216
Premixed flames subjected to extreme levels of turbulence part I: Flame structure and a new measured regime diagram
journal, March 2018
- Skiba, Aaron W.; Wabel, Timothy M.; Carter, Campbell D.
- Combustion and Flame, Vol. 189
Turbulence-chemistry interaction in lean premixed hydrogen combustion
journal, January 2015
- Aspden, A. J.; Day, M. S.; Bell, J. B.
- Proceedings of the Combustion Institute, Vol. 35, Issue 2
Works referencing / citing this record:
A scaling analysis for the evolution of small-scale turbulence eddies across premixed flames with implications on distributed combustion
journal, October 2019
- Paes, Paulo L. K.; Shah, Yash G.; Brasseur, James G.
- Combustion Theory and Modelling, Vol. 24, Issue 2
Hidden prompt splashing by corona splashing at drop impact on a smooth dry surface
journal, January 2020
- Ashida, Taku; Watanabe, Masao; Kobayashi, Kazumichi
- Physical Review Fluids, Vol. 5, Issue 1