Shinnosuke Nishiki

TL;DR: In this paper, the authors obtained databases of fully developed stationary turbulent flames and analyzed the transport equation for turbulent kinetic energy to study flame-generated turbulence and its models, and they found that turbulent fluctuations of all components, especially the streamwise component, were amplified in the flame brush and that flame generated turbulence increased for a larger density ratio of the flame.

TL;DR: In this article, a transport equation for scalar flux in turbulent premixed flames was modelled on the basis of DNS databases, which showed that the countergradient diffusion was dominant in the flame region.

TL;DR: In this article, a 3D Direct Numerical Simulations (DNS) of statistically stationary, 1D, planar turbulent flames characterized by three different density ratios σ is processed in order to investigate vorticity transformation in premixed combustion under conditions of moderately weak turbulence.

TL;DR: In this article, zone conditional two-fluid equations are derived and validated against a DNS database for a turbulent premixed flame and the conditional statistics of major flow variables are investigated to understand the mechanism of flame-generated turbulence.

TL;DR: In this article, the growth of an unburned mixture finger (UMF), which deeply intrudes into combustion products, is controlled by a physical mechanism of flame-flow interaction that has not yet been highlighted in the turbulent combustion literature.