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- Title
Fluid Flow and Distributive Mixing Analysis in the Cavity Transfer Mixer.
- Authors
Grosso, Giovanna; Hulsen, Martien A.; Overend, Andrew; Anderson, Patrick D.
- Abstract
In the polymer industry good mixing is essential to guarantee the characteristics of finished products. However, optimizing mixing devices is often difficult because mixing mechanisms are the result of the complex interaction between the moving elements and the non-Newtonian fluids used. Full 3D simulations are computationally expensive and the complexity of the problem is often split into approximated subproblems. The present work focuses on a simplified 2D model of the Cavity Transfer Mixer, investigating stretching and folding mixing actions. Several geometrical and functioning parameters, such as cavity speed, cavity shape, intercavity distance, rotor-stator clearance, and fluid rheology are varied. Mixing is analyzed in terms of Poincaré maps and by simulating the evolution of fluid blobs. The intercavity distance is found to play a major role, enabling and governing the stretching actions inside the mixing device.
- Subjects
FLUID flow; NEWTONIAN fluids; POLYMERS industry; POINCARE maps (Mathematics); RHEOLOGY
- Publication
Macromolecular Theory & Simulations, 2018, Vol 27, Issue 3, p1
- ISSN
1022-1344
- Publication type
Article
- DOI
10.1002/mats.201700075