Local Strain Rate and Curvature Dependences of Scalar Dissipation Rate Transport in Turbulent Premixed Flames: A Direct Numerical Simulation Analysis

Figure 11

The marginal pdfs of (−𝐷₂)×𝛿²_th/𝜌₀𝑆²_𝐿 for 𝑐=0.3, 0.7, and 0.9 for cases (a) P3 and V2. Joint pdfs between (−𝐷₂)×𝛿²_th/𝜌₀𝑆²_𝐿 and normalised tangential strain rate 𝑎_𝑇×𝛿_th/𝑆_𝐿 on 𝑐=0.8 isosurface for cases (b) P3 and (c) V2.

(a)

(b)

(c)