(723a) Particle Motion in Vertical Bladed Mixers
AIChE Annual Meeting
Thursday, November 2, 2017 - 12:30pm to 12:49pm
In order to study the mixing process it is imperative to study the motion of individual particles under different mixing mechanisms arising from blade movement. In this study, experiments were performed in a transparent 15.2 cm ID acrylic cylinder fitted with two 45o blades and filled with particles of varying diameter and density. Tagged particles were loaded in different positions and image analysis techniques were employed to follow the trajectories of the tagged particles. Observations were obtained for tagged particle initial location at the free surface as well as along the transparent walls. Particle Tracking Velocimetry (PTV) techniques were used to obtain the particle position, orientation, and velocity. The effects of particle size, density, initial location, and impeller speed on the trajectory and final location of the tagged particles are reported.