Effects of Variation of the Flame Area and Natural Damping on Primary Acoustic Instability of Downward Propagating Flames in a Tube

@inproceedings{Yoon2015EffectsOV,
  title={Effects of Variation of the Flame Area and Natural Damping on Primary Acoustic Instability of Downward Propagating Flames in a Tube},
  author={Sung Hwan Yoon and Osamu Fujita},
  year={2015}
}
This investigation was triggered from the experimental observations by Searby [1]. He reported four distinct regimes of downward propagating flames in a tube: (1) a cellular flame with no acoustic sound just after ignition, (2) a primary acoustic instability with a flat flame surface, (3) a violent secondary acoustic instability with a corrugated flame, and (4) turbulent flame. Here, the important problem which remains unsolved is the generation of primary acoustic instability. The approach on… CONTINUE READING

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