A Study on the Interaction between a Flame and a Pressure Wave : On the Response of a premixed Flame to an N-Wave

Abstract

A study was made on the interaction between a two-dimensional premixed flame and a pressure wave generated by an exploding wire. City gas was used as the fuel in this experiment. The pressure wave was a short duration N-wave which propagated into the flame in the direction of the burner axis or the right angle direction. The response of the flame to the pressure wave was observed in detail by means of Schlieren high speed framing photography and was found, in consequence, to have a basic pattern. This pattern was compared and discussed with the change in flow field measured by a hot-wire.