Premixed flames in narrow heated circular channels: steady-state solutions, and linear stability analysis

  • Kurdyumov, Vadim (CIEMAT)
  • Fernández-Galisteo, Daniel (CIEMAT)
  • Jiménez, Carmen (CIEMAT)

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In this work we present a study of the dynamics of premixed flames in externally heated narrow circular channels. The use of a simplified model (constant-density, one-step chemistry) permits to carry out a global stability analysis in addition to time-dependent numerical simulations. We find a rich dynamics, with oscillating flames and cellular structures as well as chaotic flame dynamics.