Fig. 8

Figure a), b), c) and d) are experimental data (blue circles) of selected pixels on the rotation y axis defining slices at different height of the flame describing the temperature distribution on a horizontal plane (from top to bottom 50, 200, 325, 350, 365, 370 and 380, respectively) for the four experimental conditions considered 1OS, 2OS,3OS and 4OS, respectively. The solid black lines represent fitted Gaussian curves. (e), (f), (g) and (h) are slices at different height of the flame describing the temperature distribution on a horizontal plane associated to figures (a), (b), (c) and (d), respectively. The temperature intensity goes from blue (cold) to red (hot)