Turbulent transfer modeling in flows with chemical reactions

摘要

The peculiarities of the turbulent transfer accompanied by chemical reactions are illustrated by an example of mixing in the co-flows of different chemical comositions. Both macromixing (turbulent convection and diffusion) and micromixing (process resulting in chemical reaction) are considered. The turbulent flux equation is used without any gradient hypothesis for calculating the turbulent diffusivity as a function of the distance. Various initial coditions are considered.