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Numerical simulation of forced laminar flame
KTH, School of Engineering Sciences (SCI), Mechanics. KTH, School of Engineering Sciences (SCI), Centres, Linné Flow Center, FLOW. Lund University, Sweden .
2009 (English)In: 47th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition, 2009, 2009-1186- p.Conference paper, Published paper (Refereed)
Abstract [en]

The simulation of laminar flames consists of capturing the evolution of a very large number of species that may react within a broad range of time scales. It therefore results in a highly non-linear stiff numerical problem that requires large computational resources. In the present paper, an alternative approach for the simulation of unsteady premixed flames is proposed and is applied for simulating an excited laminar flame. The approach is to using a single scalar (i.e. a progress variable) on relatively coarse grids. The unresolved details of the flame structure are expressed in terms of the spatial filtering. A model that has originally been developed for Large Eddy Simulation is applied for the simulation of unsteady laminar flames. The ability of the present approach to represent the filtered flame structure is compared qualitatively to experimental data.

Place, publisher, year, edition, pages
2009. 2009-1186- p.
Keyword [en]
Alternative approach, Coarse grid, Computational resources, Experimental data, Flame structure, Laminar flame, Non-linear, Number of species, Numerical problems, Numerical simulation, Spatial filterings, Time-scales, Unsteady premixed flames, Aerospace engineering, Computer simulation
National Category
Other Engineering and Technologies
Identifiers
URN: urn:nbn:se:kth:diva-152445Scopus ID: 2-s2.0-78549289232ISBN: 978-156347969-4 (print)OAI: oai:DiVA.org:kth-152445DiVA: diva2:750124
Conference
47th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition, 5 January 2009 through 8 January 2009, Orlando, FL, United States
Note

QC 20140926

Available from: 2014-09-26 Created: 2014-09-26 Last updated: 2014-09-26Bibliographically approved

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  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
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Language
  • de-DE
  • en-GB
  • en-US
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  • nn-NO
  • nn-NB
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  • Other locale
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Output format
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  • asciidoc
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