“…It is obviously shown in Figure 7 of the peak correlation are determined by ∆ + x =ū + τ + , which is in agreement with the convection characteristics observed in Figure 6(c) as well as the spatio-temporal correlations of jet noise sources (e.g. Karabasov et al, 2010Karabasov et al, , 2011Depuru Mohan et al, 2015), local burning area fluctuations (Hemchandra and Lieuwen, 2010), and local chemiluminescence fluctuations (Rajaram and Lieuwen, 2009). The envelope of the peak correlation values indicates the decay of Ω p (∆ + x , τ + ) with the separation distance ∆ + x and/or time delay τ + .…”