The effect of stator geometry on the flow pattern and energy dissipation rate in a rotor–stator mixer

Droplet break-up by in-line Silverson rotor–stator mixer

“…Rotor-stator mixers are frequently used in process industries such as fine chemicals, food processing and pharmaceuticals (Maa and Hsu, 1996;Saadevandi and Zakin, 1996;Schubert, 1997;Atiemo-Obeng and Calabrese, 2004;Adler-Nissen et al, 2004) as they have the ability to achieve several process operations within a single unit operation, leading to increased process intensification. The main advantage of using these mixers is due to the creation of very high energy dissipation rates as the kinetic energy generated by the rotor is dissipated in the small stator volume, and high shear rates in the rotor-stator gap (Utomo et al, 2009).…”

Facile and size-controllable preparation of graphene oxide nanosheets using high shear method and ultrasonic method

“…The first one is the shear force, which was induced by the mechanical rotating of the rotor directly, and the field of shear flow in the narrow slot between a couple of stator and rotor. The second one is the impact force, which was generated by the mechanical impact against the rotor directly, the impact to stator by the acceleration of the fluid, and the frequent and random collisions between graphite oxide particles [4,58,59]. Shear force is one of the effective mechanical forces that lead to material exfoliation, but impacting force is more effective in material breakage because it tends to accentuate the tendency for the residual cracks in the material to propagate.…”

Novel Health Ingredients and Their Applications in Salad Dressings and Other Food Emulsions

“…As the rotor blades pass each port in the stationary stator at very high velocity, the raw materials of the emulsion are expelled and forced into the surrounding mixture due to the high pressure in front of the blades, while the low pressure behind the blades pulls the fluid back through. As a result, a continuous and vigorous flow is generated and recirculated as more materials are drawn into the system (Utomo et al 2009). At the same time, large particles are physically ground and hydraulically sheared.…”