Figure 7:

OH* chemiluminescence images of a burning JP-8 droplet situated at 0.029 wavelengths to the left of the PN during acoustic forcing at 332 Hz for (a) $p{\prime }_{\text{max}.}$ = 175 Pa. Nondimensionalized measurements of local p′, integrated chemiluminescent intensity I′ and local flame standoff distance δ_f are plotted as a function of the acoustic phase for the same forcing conditions, at (b) $p{\prime }_{\text{max}.}$ = 150 Pa and (c) 175 Pa.