Experimental investigations have been performed on a medium-scale pool fire acoustically forced in order to facilitate repeatable measurements defining the flame’s transient behavior. The fuel flow was slightly perturbed at the natural frequency of ...
Experimental investigations have been performed on a medium-scale pool fire acoustically forced in order to facilitate repeatable measurements defining the flame’s transient behavior. The fuel flow was slightly perturbed at the natural frequency of the pool fire by a sine waveform driven with a loudspeaker which was installed under the burner. As a result of the perturbation, the puffing behavior of pool fire and the fire shape were modified. As the magnitude of sine wave was increased more motion was clearly observed, based on the measurement of the radiative heat flux and image analysis. Temperature and soot volume fractions were measured along the center line and throughout a slice of the burner. The soot volume fractions in the flame region are in very good agreement with other researchers. The reproducibility of these measurements is established through several series of experiments. The acoustically driven flame provides the possibility of a more repeatable measurements of the transient behavior of these pool fires.