On chaotic advection in a static mixer

Numerical analysis of lamination effect in a vortex micro T-mixer with non-aligned inputs

“…The mixing in T-mixer is slow because the mixing process occurs only with diffusion. The method of lamination [3], injection [4], and chaotic advection [5] are used to reduce mixing length between two fluid streams. Parallel or serial laminar mixers use decomposition and combination effect to reduce mixing length.…”

Numerical Investigation of the Performance of Kenics Static Mixers for the Agitation of Shear Thinning Fluids

“…An efficient solution for this issue is the use of static mixers, which are twisted elements inserted inside the pipe to cut, twist, fold and re-combine fluid particles . This design may create under laminar flow conditions a chaotic advection as in turbulent flows (Hobbs and Muzzio, 1997;Saatdjian et al, 2012).…”

“…For a Kenics mixer, Saatdjian et al (2012) reported that the initial location of a blob of dye is important for its spreading over the cross section of the tube only in the first few mixing elements, its influence decreases afterwards. The eccentric position of helical elements may improve slightly the mixing efficiency by increasing the extensional efficiency of mixing and giving a more homogeneous distribution of stretching rates inside the Kenics mixer (Saatdjian et al, 2012).…”

“…The eccentric position of helical elements may improve slightly the mixing efficiency by increasing the extensional efficiency of mixing and giving a more homogeneous distribution of stretching rates inside the Kenics mixer (Saatdjian et al, 2012).…”

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

“…[25][26][27][28] In chemical mixing process, CFD method is used to optimize the mixer geometry and get a better insight on the complex flow patterns generated by the interaction between the impeller and the vessel wall. 29,30 For the twin-blade planetary mixer, due to the low mechanical efficiency of the gear box and the planetary motion of blades, it is hard to measure the torque blades power consumption experimentally. However, CFD method provides a novel way to investigate the power consumption of the mixer on the basis that the numerical model has been validated.…”