Abstract
The problem of flame propagation through a gas which is ignited by an electrical discharge is investigated numerically, taking into account the influence of the electrodes. It is shown that critical ignition conditions may exist. A variation in the interelectrode gap produces a change in the developing flame geometry. The extinguishing gap effect, which is observable during a narrowing of the interelectrode gap, is explained by the amplification of the heat exchange with the electrodes.
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