Abstract:
The paper presents the results of an experimental study of the cellular structure of a hydrogen-air flame propagating in a channel with a diameter of 54 mm, partially filled with porous material. Based on the results of shadow visualization of the flame, cell size distributions in a channel with different fillings of steel wool were obtained. It is shown that the average value and standard deviation of the flame cell width in a hydrogen-air mixture with a hydrogen content of 15 vol.% in a channel filled with steel wool for 66% of the cross-section are 2.5 times less than similar ones in a channel without filling.
Keywords:hydrogen, combustion in a channel, distribution function, cellular flame, porous layer.
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