Direct Numerical Simulations of the Impact of High Turbulence Intensities and Volume Viscosity on Premixed Methane Flames

Figure 6

Time evolution of the iso-contours of temperature (along the 𝑧=2.0 cm plane) for case 4 (without volume viscosity).

(a) 𝑡=0.005𝜏

(b) 𝑡=0.25𝜏

(c) 𝑡=0.5𝜏

(d) 𝑡=0.75𝜏

(e) 𝑡=1.0𝜏

(f) 𝑡=1.2𝜏