J. H. Chen

TL;DR: In this article, a chemical explosive mode analysis (CEMA) was developed as a new diagnostic to identify flame and ignition structure in complex flows, which was then used to analyse the near-field structure of the stabilization region of a turbulent lifted hydrogen-air slot jet flame in a heated air coflow computed with three-dimensional direct numerical simulation.

TL;DR: In this paper, a direct numerical simulation of a three-dimensional spatially developing turbulent lifted hydrogen jet flame in heated coflow is performed with a detailed mechanism to determine the stabilization mechanism and the flame structure.

TL;DR: In this article, the effects of the wall turbulent boundary layer (i) on the structure of a hydrogen-air premixed flame, (ii) on its near-wall propagation characteristics and (iii) on spatial and temporal patterns of the convective wall heat flux are investigated.

TL;DR: In this article, a new density-weighted definition for two-point velocity/scalar correlations is proposed, which retains the essential properties of its constant-density (incompressible) counterpart and recovers the density weighted Reynolds stress tensor in the limit of zero separation.

TL;DR: In this article, the role of the complex JICF turbulent flow field in the mechanism of fast fuel-oxidant mixing and of aerodynamic flame stabilization in the near field of the jet nozzle is studied using three-dimensional direct numerical simulation with and without chemical reaction.