Effect of shear-thinning behavior on interface renewal in partially filled single rotor mixing

The mixing process is often used not only to homogenize the materials, but also bring out better functions by different materials. In involving chemical reactions, it important quickly remove by-products of reaction. this study, a flow field around single rotor rotating in partially filled chamber was numerically simulated using 3D model examine interface renewal characteristics highly viscous fluids. fluids examined were glycerin, which Newtonian fluid, and aqueous solution carboxymethylcellulose (CMC), Non-Newtonian fluid. A three-wing chosen as rotor. evaluation performed history particles. Also, states classified into rotational, shear, extensional flows Flow number analyze field. velocity distribution obtained simulation good agreement with experimental results under same geometry conditions. For distributive renewal, CMC superior glycerin. number-based evaluations showed similar conditions rotor, regardless physical properties test However, case fluid between adjacent spaces separated wing suppressed renewals reduced. This because, compared CMC, glycerin does have decrease viscosity due shear-thinning properties, rate passing through tip relatively small. It shown that there positive correlation part