Comparison of Presumed PDF Models of Turbulent Flames

Figure 16

Dependencies of the square root 𝑠^𝐿1/2 of the normalized mean laminar flame speed on the mean equivalence ratio 𝐹, calculated invoking the beta-function (thin curves) and the R-2𝛿 (bold curves) PDFs. 𝑔=0.2. (1)𝐹_min=0.5 and 𝐹_max=1.9, (2)𝐹_min=0.4 and 𝐹_max=2.2, (3)𝐹_min=0.3 and 𝐹_max=2.5, (4)𝐹_min=0.1 and 𝐹_max=4.0.