Feature-Parameter-Criterion for Predicting Lean Blowout Limit of Gas Turbine Combustor and Bluff Body Burner

Figure 15

Changes of flame front with decreasing of fuel air ratio.

(a) 𝜑=0.0187

(b) 𝜑=0.0098

(c) 𝜑=0.00785

(d) 𝜑=0.00574

(e) 𝜑=0.00473

(f) 𝜑=0.00415