Some recent findings on turbulent diffusion flames from DNS

Direct numerical simulation (DNS) is a valuable tool for the study of compl ex interactions between turbulence and combustion, thanks to its ability to resolve the wide range of time and length scales involved. Its application in the fundamental study of turbulent diffusion flames has been particular ly fruitful in recent years, which led to some new findings, improved under standing of known phenomena and the development of new theories and models. This paper is concerned with the effects of heart release from finite-rate chemistry on compressible turbulence. The present DNS results reveal intri cate interactions among combustion, turbulent transport and mixing.