Flame surface density and burning rate in premixed turbulent flames

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Description

The flame surface density has been measured in hydrocarbon/air stagnation point and v-shaped premixed turbulent flames. A method is proposed to determine the flame surface density from the data obtained by laser sheet tomography. The average flame length and flame zone area as a function of the progress variable are calculated from a map of progress variable and a set of flame edges obtained from the tomographs. From these results a surface density estimate in two dimensions is determined. By this technique it is possible to avoid the difficulties which arise when using an algebraic model based on the measurement ... continued below

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12 p.

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Shepherd, I.G. October 1, 1995.

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This report is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 26 times . More information about this report can be viewed below.

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  • Shepherd, I.G. Lawrence Berkeley National Lab., CA (United States). Energy and Environment Div.

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Description

The flame surface density has been measured in hydrocarbon/air stagnation point and v-shaped premixed turbulent flames. A method is proposed to determine the flame surface density from the data obtained by laser sheet tomography. The average flame length and flame zone area as a function of the progress variable are calculated from a map of progress variable and a set of flame edges obtained from the tomographs. From these results a surface density estimate in two dimensions is determined. By this technique it is possible to avoid the difficulties which arise when using an algebraic model based on the measurement of the flame front geometry and a scalar length scale. From these results the burning rate can be obtained which compares well with estimates calculated using the fractal technique. The present method, however, is not constrained by a minimum window size as is the case for the fractal determinations.

Physical Description

12 p.

Notes

OSTI as DE96002278

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  • Fall meeting of the Western States Section of the Combustion Institute, Stanford, CA (United States), 30-31 Oct 1995

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  • Other: DE96002278
  • Report No.: LBL--37834
  • Report No.: CONF-9510145--2
  • Grant Number: AC03-76SF00098
  • DOI: 10.2172/132644 | External Link
  • Office of Scientific & Technical Information Report Number: 132644
  • Archival Resource Key: ark:/67531/metadc624176

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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Creation Date

  • October 1, 1995

Added to The UNT Digital Library

  • June 16, 2015, 7:43 a.m.

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  • April 5, 2016, 10:02 a.m.

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Shepherd, I.G. Flame surface density and burning rate in premixed turbulent flames, report, October 1, 1995; California. (digital.library.unt.edu/ark:/67531/metadc624176/: accessed November 18, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.