We review the significant progress that has been made in the development and use of
turbulent combustion models applicable to practical combustion devices. Recent work has
focused on the development of methods that can treat finite-rate kinetics in a realistic yet
tractable way, so that local extinction and related phenomena can be studied. Direct
numerical simulation cannot be used for this purpose, because it is computationally
intractable; and the potential of large-eddy simulation is far from clear because combustion …