Oscillating and rotating flame patterns in radial microchannels

Sergey Minaev, Roman Fursenko, Evgeniy Sereshchenko, Aiwu Fan, Sudarshan Kumar

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

The thermal-diffusive model was applied to demonstrate possibility of formation of oscillating or rotating spatial flame structures, which were described previously in experimental works on premixed gas combustion in the clearance between two disks with radial feeding of premixture. The gas flow was assigned and described by the Poiseuille-flow velocity profile. Rotating and oscillating flame patterns in a radial channel were observed only within certain ranges of gas flow rates. Formation of these special flame structures is related to preheating of unburned mixture by hot walls and non-uniform velocity distribution inside the microchannel.

Original languageEnglish
Pages (from-to)3427-3434
Number of pages8
JournalProceedings of the Combustion Institute
Volume34
Issue number2
DOIs
Publication statusPublished - 2013
Externally publishedYes

Keywords

  • Burning velocity
  • Flame extinction/ignition
  • Flame front
  • Micro channel
  • Thermal-diffusive instability

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