Hashimoto et al. (2011) suggested that baffles can effectively
transform the circumferential flow to vertical and radial
flows. Their study, based on the streak flow pattern, showed
that in baffled vessels, both the vicinity of the vessel wall and
the tip of baffles causes a streak lobe formation and folds of
streak in the vertical and circumferential directions can be
enhanced with the installation of baffles. As a consequence
of this enhancement mechanism, the isolated toroidal mixing
regions in a baffle tank became distorted. It is also very
interesting to comment that using baffles more than 2 does
not improve mixing in the tank.