Flow field and homogenization time assessment in continuously-fed stirred tanks

The results show that the inlet stream modifies the mean flow field features more importantly the smaller the agitation speed is, as compared with the feed flow rate. The jet affects the overall fluid dynamics in terms of general flow pattern and local turbulence values. It is shown that the jet stream gives rise to a substantial reduction of mixing times (in the order of 15 to 30%, depending on the agitator adopted) with comparatively small additional power inputs (less than 5% of impeller input).