Скачать или смотреть Simulating Urea-Water Spray in a Urea/SCR Aftertreatment System

With automatic grid generation and autonomous meshing, CONVERGE is optimal for simulating mixers with various blade angle orientations in Urea/SCR aftertreatment systems. You can see urea-water spray (purple parcels sized by scaled droplet radius) pass through a flapper-type mixer into the entry of the SCR brick downstream (cut-plane colored by mole fraction of ammonia; red=high concentration, blue=low concentration). The blade orientations in this simulation cause a non-uniform distribution of ammonia at the SCR brick entrance, which negatively impacts NOx conversion.

Cloud-based optimization of mixer blade angles with CONVERGE and modeFRONTIER from ESTECO results in improved designs with markedly higher uniformity and subsequent improvements in NOx conversion for a fraction of the cost required by traditional design approaches.