The present work is driven by a need to eliminate IMRs at high viscosities with practical engineering designs. This is related to the background of processing of viscous slurry materials at larger industrial mixing tanks, such as those used in the minerals hydrometallurgical operations. Due to large equipment dimensions and motor power used in such operations, it is impractical to employ methods such as oscillating speeds or higher Reynolds numbers, i.e. increased speed at significantly higher power input.