In many technical systems, NO emissions have to be reduced by SNCR (Selective Non-Catalytic Reaction) or SCR (Selective Catalytic Reaction) methods. That is why simulation tools are used to find the optimal injection strategy in a two-phase flow system and to evaluate the best mixing device.

In the following image, the white dots show the liquid droplets of the injected flow and the colored planes show the distribution in the vapor phase.