Laser-induced breakdown spectroscopy in a partially premixed turbulent jet flame

Johannes Kiefer, Zhongshan Li, Marcus Alden

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)


A new approach for studying mixing and combustion phenomena in turbulent partially premixed flames using laser-induced breakdown spectroscopy (LIBS) is demonstrated. Setting the laser pulse energy just above the breakdown threshold in the cold gas allows statistical data to be obtained concerning the probability of finding cold or hot gas inside the measurement volume. Moreover, a compositional analysis utilizing the LIBS spectra allows the mixing of the different cold gas flows to be studied. A proof-of-concept experiment is carried out in a turbulent jet flame stabilized on a coaxial burner. The LIBS data agree well with results obtained by planar laser-induced fluorescence of OH radicals.
Original languageEnglish
Article number075205
JournalMeasurement Science and Technology
Issue number7
Publication statusPublished - 17 Jun 2013


  • laser-induced breakdown spectroscopy
  • mixing
  • flame surface density
  • statistical analysis


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