publication . Article . 2013

Study of Dynamic Flow and Mixing Performances of Tri-Screw Extruders with Finite Element Method

G. Wang; X. Z. Zhu; Z. F. Cheng; Y. D. He;
Open Access English
  • Published: 01 Jan 2013 Journal: Advances in Mechanical Engineering (issn: 1687-8132, Copyright policy)
  • Publisher: SAGE Publishing
Abstract
There is a special circumfluence in the center region of cross-section for a tri-screw extruder. To study the effect of the dynamic center region on the flow and mixing mechanism of the tri-screw extruder, 2D finite element modeling was used to reduce the axial effects. Based on the particle tracking technology, the nonlinear dynamics of a typical particle motions in the center region was carried out and the mixing process in the tri-screw extruder was analyzed with Poincaré maps. Moreover, mixing evaluations of the tri-screw and twin-screw extruders were analyzed and compared. The results show that there are many multiple and fractional excitation frequencies i...
Subjects
free text keywords: Mechanical engineering and machinery, TJ1-1570, Mechanical Engineering, Chaotic, Poincaré map, Mechanics, Flow (psychology), Control theory, Engineering, business.industry, business, Finite element method, Plastics extrusion, Nonlinear system, Fast Fourier transform, Particle
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