A Priori Assessment of Algebraic Flame Surface Density Models in the Context of Large Eddy Simulation for Nonunity Lewis Number Flames in the Thin Reaction Zones Regime

Figure 9

Variation of ⟨Σ_gen⟩/⟨|∇𝑐|⟩ with Δ/𝛿_𝑧 on a log-log plot for (a–e) cases A1–E1. The prediction of ⟨Σ_gen⟩/⟨|∇𝑐|⟩=(Δ/𝜂_𝑖)^𝐷−2 with 𝜂_𝑖 obtained from DNS and (𝐷−2) according to (11) is also shown.

(a)

(b)

(c)

(d)

(e)