One-dimensional flame instability and control of burning in fire-chamber
DOI:
https://doi.org/10.15276/opu.1.45.2015.14Keywords:
flame, combustion, vibratory combustion, instability, laminarity, turbulence, fire-chamberAbstract
The flame stability with regard to one-dimensional exponential perturbations both for the combustion in the fire-chamber and the flame propagating in closed tubes or chambers is investigated. It is proved that both stability and instability are possible for the combustion process. At the same time the one-dimensional flame instability is guaranteed near the front wall of the fire-chamber where the fuel supply is realized. Therefore the control of combustion in the fire-chamber leads to support of the flame at the maximum possible distance from the front wall of the fire-chamber to prevent the vibratory combustion or to diminish intensity of pulsations if these pulsations are inevitable.
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