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

Figure 5

(a) Joint pdfs between 𝑁_𝑐×𝛿_th/𝑆_𝐿 and normalised tangential strain rate 𝑎_𝑇×𝛿_th/𝑆_𝐿 on 𝑐=0.8 isosurface for cases P1, P5, V1, and V3. (b) Joint pdf between 𝑁_𝑐×𝛿_th/𝑆_𝐿 and normalised curvature 𝜅_𝑚×𝛿_th on 𝑐=0.8 isosurface for cases P1, P5, V1, and V3.

(a)

(b)