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

Figure 12

Joint pdfs between (−𝐷₂)×𝛿²_th/𝜌₀𝑆²_𝐿 and normalised curvature 𝜅_𝑚×𝛿_th on (a) 𝑐=0.3, (b) 0.7. and (c) 0.9 isosurfaces for case P3. Joint pdfs between (−𝐷₂)×𝛿²_th/𝜌₀𝑆²_𝐿 and normalised curvature 𝜅_𝑚×𝛿_th on (d) 𝑐=0.3, (e) 0.7, and (f) 0.9 isosurfaces for case V2.

(a)

(b)

(c)

(d)

(e)

(f)