Research Article

Burning Rate in Impinging Jet Flames

Figure 6

Tested method for determining turbulent burning velocity. Bold and thin solid lines show typical axial profiles of the Favre-averaged combustion progress variable and normalized axial velocity, respectively. Dashed curve calculated using (14) extrapolates the mean velocity profile from the oncoming flow to the flame brush. Filled circle shows turbulent burning velocity determined using the tested method. Filled triangle shows turbulent displacement speed associated commonly with the local minimum of | 𝑤 ( 𝑧 ) | .
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