Abstract
Three-dimensional direct numerical simulations (DNS) with detailed kinetic mechanism have been conducted for statistically-planar, freely-propagating turbulent flame and turbulent V-flame of hydrogen-air mixture in relatively high Reynolds number turbulence. DNS of each configuration was performed in two numerical conditions which are characterized by the difference of Reynolds number. From these results, eigen values of strain tensor are evaluated to investigate characteristics of the strain field near the flame and alignment of the principal strain and flame. Strong dependency of turbulent-flame interaction on Reynolds number and convection are revealed. Interesting feature of high Reynolds number turbulent flame is described as well.
