DNS of a turbulent lifted DME jet flame

Minamoto, Yuki; Chen, Jacqueline H.

doi:10.1016/j.combustflame.2016.04.007

Title: DNS of a turbulent lifted DME jet flame

Abstract

A three-dimensional direct numerical simulation (DNS) of a turbulent lifted dimethyl ether (DME) slot jet flame was performed at elevated pressure to study interactions between chemical reactions with low-temperature heat release (LTHR), negative temperature coefficient (NTC) reactions and shear generated turbulence in a jet in a heated coflow. By conditioning on mixture fraction, local reaction zones and local heat release rate, the turbulent flame is revealed to exhibit a “pentabrachial” structure that was observed for a laminar DME lifted flame [Krisman et al., (2015)]. The propagation characteristics of the stabilization and triple points are also investigated. Potential stabilization points, spatial locations characterized by preferred temperature and mixture fraction conditions, exhibit autoignition characteristics with large reaction rate and negligible molecular diffusion. The actual stabilization point which coincides with the most upstream samples from the pool of potential stabilization points fovr each spanwise location shows passive flame structure with large diffusion. The propagation speed along the stoichiometric surface near the triple point is compared with the asymptotic value obtained from theory [Ruetsch et al., (1995)]. At stoichiometric conditions, the asymptotic and averaged DNS values of flame displacement speed deviate by a factor of 1.7. However, accounting for the effect of low-temperature speciesmore »« less

Authors:

^[1]; Chen, Jacqueline H. ^[2]

Sandia National Lab. (SNL-CA), Livermore, CA (United States); Tokyo Institute of Technology, Tokyo (Japan)
Sandia National Lab. (SNL-CA), Livermore, CA (United States)

Publication Date:: Sat May 07 00:00:00 EDT 2016

Research Org.:: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Oak Ridge Leadership Computing Facility (OLCF); Sandia National Lab. (SNL-CA), Livermore, CA (United States)

Sponsoring Org.:: USDOE Office of Science (SC)

OSTI Identifier:: 1263550

Alternate Identifier(s):: OSTI ID: 1324350

Report Number(s):: SAND-2016-3296J
Journal ID: ISSN 0010-2180; PII: S0010218016300542

Grant/Contract Number:: AC04-94AL85000; AC05-00OR22725

Resource Type:: Accepted Manuscript

Journal Name:: Combustion and Flame

Additional Journal Information:: Journal Volume: 169; Journal Issue: C; Journal ID: ISSN 0010-2180

Publisher:: Elsevier

Country of Publication:: United States

Language:: English

Subject:: 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; direct numerical simulation (DNS); dimethyl ether (DME); negative temperature coefficient (NTC); low-temperature heat release (LTHR); lifted flame; diesel combustion

Citation Formats


                    Minamoto, Yuki, and Chen, Jacqueline H. DNS of a turbulent lifted DME jet flame.  United States: N. p., 2016. 
Web.  doi:10.1016/j.combustflame.2016.04.007.

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                    Minamoto, Yuki, & Chen, Jacqueline H. DNS of a turbulent lifted DME jet flame.  United States.  https://doi.org/10.1016/j.combustflame.2016.04.007

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                    Minamoto, Yuki, and Chen, Jacqueline H. Sat .  
"DNS of a turbulent lifted DME jet flame".  United States.  https://doi.org/10.1016/j.combustflame.2016.04.007.  https://www.osti.gov/servlets/purl/1263550.

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@article{osti_1263550,

  title        = {DNS of a turbulent lifted DME jet flame},

  author       = {Minamoto, Yuki and Chen, Jacqueline H.},

  abstractNote = {A three-dimensional direct numerical simulation (DNS) of a turbulent lifted dimethyl ether (DME) slot jet flame was performed at elevated pressure to study interactions between chemical reactions with low-temperature heat release (LTHR), negative temperature coefficient (NTC) reactions and shear generated turbulence in a jet in a heated coflow. By conditioning on mixture fraction, local reaction zones and local heat release rate, the turbulent flame is revealed to exhibit a “pentabrachial” structure that was observed for a laminar DME lifted flame [Krisman et al., (2015)]. The propagation characteristics of the stabilization and triple points are also investigated. Potential stabilization points, spatial locations characterized by preferred temperature and mixture fraction conditions, exhibit autoignition characteristics with large reaction rate and negligible molecular diffusion. The actual stabilization point which coincides with the most upstream samples from the pool of potential stabilization points fovr each spanwise location shows passive flame structure with large diffusion. The propagation speed along the stoichiometric surface near the triple point is compared with the asymptotic value obtained from theory [Ruetsch et al., (1995)]. At stoichiometric conditions, the asymptotic and averaged DNS values of flame displacement speed deviate by a factor of 1.7. However, accounting for the effect of low-temperature species on the local flame speed increase, these two values become comparable. In conclusion, this suggests that the two-stage ignition influences the triple point propagation speed through enhancement of the laminar flame speed in a configuration where abundant low-temperature products from the first stage, low-temperature ignition are transported to the lifted flame by the high-velocity jet.},

  doi          = {10.1016/j.combustflame.2016.04.007},

  journal      = {Combustion and Flame},

  number       = C,

  volume       = 169,

  place        = {United States},

  year         = {Sat May 07 00:00:00 EDT 2016},

  month        = {Sat May 07 00:00:00 EDT 2016}

}

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Works referencing / citing this record:

Investigation of turbulence–chemistry interactions in a heavy-duty diesel engine with a representative interactive linear eddy model
journal, December 2018

Lackmann, Tim; Nygren, Andreas; Karlsson, Anders
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Application of deep artificial neural networks to multi-dimensional flamelet libraries and spray flames
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Owoyele, Opeoluwa; Kundu, Prithwish; Ameen, Muhsin M.
International Journal of Engine Research, Vol. 21, Issue 1
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Similar Records

Title: DNS of a turbulent lifted DME jet flame

Abstract

Citation Formats

Polybrachial structures in dimethyl ether edge-flames at negative temperature coefficient conditions journal, January 2015

Effects of heat release on triple flames journal, June 1995

Flame in a buoyant methane layer journal, January 1965

Toward an understanding of the stabilization mechanisms of lifted turbulent jet flames: Experiments journal, April 2007

A Review of Fundamental Studies Relevant to Flame Lift-off in Diesel Jets conference, April 2007

Studies on the Liftoff Properties of Dimethyl Ether jet Diffusion Flames journal, June 2006

A numerical analysis of the structure of a turbulent hydrogen jet lifted flame journal, January 2002

Three-dimensional direct numerical simulation of a turbulent lifted hydrogen jet flame in heated coflow: flame stabilization and structure journal, December 2009

Two-stage ignition and NTC phenomenon in diesel engines journal, March 2015

Autoignition-affected stabilization of laminar nonpremixed DME/air coflow flames journal, September 2015

Terascale direct numerical simulations of turbulent combustion using S3D journal, January 2009

Numerical and experimental investigation of turbulent DME jet flames journal, January 2015

Thermal decomposition reaction and a comprehensive kinetic model of dimethyl ether journal, January 2008

The reaction kinetics of dimethyl ether. II: Low-temperature oxidation in flow reactors journal, January 2000

Nonpremixed ignition of H2/air in a mixing layer with a vortex journal, January 2005

Several new numerical methods for compressible shear-layer simulations journal, June 1994

On reduced mechanisms for methaneair combustion in nonpremixed flames journal, May 1990

Boundary conditions for direct simulations of compressible viscous flows journal, July 1992

Improved boundary conditions for viscous, reacting, compressible flows journal, November 2003

Scalar mixing in direct numerical simulations of temporally evolving plane jet flames with skeletal CO/H2 kinetics journal, January 2007

Mixing time-history effects in Large Eddy Simulation of non-premixed turbulent flames: Flow-Controlled Chemistry Tabulation journal, January 2012

An age extended progress variable for conditioning reaction rates journal, October 2007

DNS of EGR-type turbulent flame in MILD condition journal, January 2013

Analysis of the contribution of curvature to premixed flame propagation journal, July 1999

Numerical Investigation of Edge Flame Propagation Behavior in an Igniting Turbulent Planar Jet journal, October 2010

Reaction Zones and Their Structure in MILD Combustion journal, June 2014

Structure of laminar premixed flames of methane near the auto-ignition limit journal, December 2013

Simultaneous Rayleigh temperature, OH- and CH2O-LIF imaging of methane jets in a vitiated coflow journal, October 2008

Ignition of turbulent non-premixed flames journal, February 2009

Modeling extinction and reignition in turbulent nonpremixed combustion using a doubly-conditional moment closure approach journal, December 2001

Double conditioning of reactive scalar transport equations in turbulent nonpremixed flames journal, July 2004

Autoignition in nonhomogeneous mixtures: Conditional statistics and implications for modeling journal, October 2007

Investigation of turbulence–chemistry interactions in a heavy-duty diesel engine with a representative interactive linear eddy model journal, December 2018

Application of deep artificial neural networks to multi-dimensional flamelet libraries and spray flames journal, March 2019

Polybrachial structures in dimethyl ether edge-flames at negative temperature coefficient conditions
journal, January 2015

Effects of heat release on triple flames
journal, June 1995

Flame in a buoyant methane layer
journal, January 1965

Toward an understanding of the stabilization mechanisms of lifted turbulent jet flames: Experiments
journal, April 2007

A Review of Fundamental Studies Relevant to Flame Lift-off in Diesel Jets
conference, April 2007

Studies on the Liftoff Properties of Dimethyl Ether jet Diffusion Flames
journal, June 2006

A numerical analysis of the structure of a turbulent hydrogen jet lifted flame
journal, January 2002

Three-dimensional direct numerical simulation of a turbulent lifted hydrogen jet flame in heated coflow: flame stabilization and structure
journal, December 2009

Two-stage ignition and NTC phenomenon in diesel engines
journal, March 2015

Autoignition-affected stabilization of laminar nonpremixed DME/air coflow flames
journal, September 2015

Terascale direct numerical simulations of turbulent combustion using S3D
journal, January 2009

Numerical and experimental investigation of turbulent DME jet flames
journal, January 2015

Thermal decomposition reaction and a comprehensive kinetic model of dimethyl ether
journal, January 2008

The reaction kinetics of dimethyl ether. II: Low-temperature oxidation in flow reactors
journal, January 2000

Nonpremixed ignition of H2/air in a mixing layer with a vortex
journal, January 2005

Several new numerical methods for compressible shear-layer simulations
journal, June 1994

On reduced mechanisms for methaneair combustion in nonpremixed flames
journal, May 1990

Boundary conditions for direct simulations of compressible viscous flows
journal, July 1992

Improved boundary conditions for viscous, reacting, compressible flows
journal, November 2003

Scalar mixing in direct numerical simulations of temporally evolving plane jet flames with skeletal CO/H2 kinetics
journal, January 2007

Mixing time-history effects in Large Eddy Simulation of non-premixed turbulent flames: Flow-Controlled Chemistry Tabulation
journal, January 2012

An age extended progress variable for conditioning reaction rates
journal, October 2007

DNS of EGR-type turbulent flame in MILD condition
journal, January 2013

Analysis of the contribution of curvature to premixed flame propagation
journal, July 1999

Numerical Investigation of Edge Flame Propagation Behavior in an Igniting Turbulent Planar Jet
journal, October 2010

Reaction Zones and Their Structure in MILD Combustion
journal, June 2014

Structure of laminar premixed flames of methane near the auto-ignition limit
journal, December 2013

Simultaneous Rayleigh temperature, OH- and CH2O-LIF imaging of methane jets in a vitiated coflow
journal, October 2008

Ignition of turbulent non-premixed flames
journal, February 2009

Modeling extinction and reignition in turbulent nonpremixed combustion using a doubly-conditional moment closure approach
journal, December 2001

Double conditioning of reactive scalar transport equations in turbulent nonpremixed flames
journal, July 2004

Autoignition in nonhomogeneous mixtures: Conditional statistics and implications for modeling
journal, October 2007

Investigation of turbulence–chemistry interactions in a heavy-duty diesel engine with a representative interactive linear eddy model
journal, December 2018

Application of deep artificial neural networks to multi-dimensional flamelet libraries and spray flames
journal, March 2019