Mixing analysis in a tank stirred with Ekato Intermig® impellers

Experimental measurement and computational fluid dynamics simulation of mixing in a stirred tank: a review

“…These are later generation impellers which include the Lightnin A315 propeller, 19 Chemineer, Maxflot-T and Erato Intermig. 20 The Lightnin A315 propeller is used in systems where high circulation and high dispersive mixing are important, such as in gas-liquid systems. 21 More recently, a lightning type of impeller (Mixtec HA735) was used to study mixing time.…”

Design of multiple impeller stirred tanks for the mixing of highly viscous fluids using CFD

“…Typically, the results of CFD calculations are presented as 2-dimensional velocity vector fields; these however can give completely misleading impressions about the flow. Much work has been done by Muzzio and co-workers concerning the characterisation of complex laminar flow fields (see for example Lamberto et al (1999) or Szalai et al (2004). They quantify mixing efficiency by calculating the stretching intensity of a particle trajectory as a function of position and time.…”

“…As discussed by Szalai et al (2004), one of the most challenging tasks in the process industries is the design and scale-up of reactors for processing of highly viscous fluids. Experimental studies are often restricted to the acquisition of global values, e.g.…”

“…The curves coincided for the entire range of Re and for three values of impeller clearance. More recently, Szalai et al (2004) have analysed the mixing performance of four Intermig impellers (separated by 0.58T) for Re = 37, 50, 100 with experimental and numerical techniques. Using Particle Image Velocimetry (PIV) and Plane Laser-Induced Fluorescence (PLIF), as well as Computational Fluid Dynamics (CFD), it is shown that the flow pattern produced by the Intermig impellers is complex and highly 3-dimensional.…”

A numerical investigation of the effects of blade’s geometric parameters on the power consumption of the twin-blade planetary mixer

“…In recent years, different mixing systems have been developed for agitation of non-Newtonian or Newtonian fluids, but the efficient mixing remains a difficult task, as does the design and scale-up of reactors for processing of highly viscous fluids. 1,2 Inducing chaotic mixing can enlarge the active mixing regions (AMRs) and minish the isolated mixing regions (IMRs), which in turn improves the mixing efficiency. 3 Yao et al 4 indicated that increasing the amplitude of fluctuation of stirring speeds and enhancing the frequency of periodic co-reverse rotation can make better mixing.…”