Dispersive Mixing Performance Evaluation of Special Rotor Segments in an Intermeshing Co-Rotating Twin-Screw Extruder by Using Weighted Probability Distributions

2015 ◽  
Vol 30 (4) ◽  
pp. 451-459 ◽  
Author(s):  
S. Yamada ◽  
K. Fukutani ◽  
K. Yamaguchi ◽  
H. Funahashi ◽  
K. Ebata ◽  
...  
Keyword(s):  
Performance Evaluation ◽  
Probability Distributions ◽  
Twin Screw Extruder ◽  
Screw Extruder ◽  
Mixing Performance ◽  
Twin Screw ◽  
Dispersive Mixing ◽  
Weighted Probability

scholarly journals Evaluation of Dispersive Mixing Performance of Special Rotor Segments in an Intermeshing Co-rotating Twin-Screw Extruder

Seikei-Kakou ◽  
2012 ◽  
Vol 24 (5) ◽  
pp. 279-285
Author(s):  
Sayaka Yamada ◽  
Kazuhisa Fukutani ◽  
Yasuaki Yamane ◽  
Kazuo Yamaguchi
Keyword(s):  
Twin Screw Extruder ◽  
Screw Extruder ◽  
Mixing Performance ◽  
Twin Screw ◽  
Dispersive Mixing

Numerical Simulation of Mixing Performance of Intermeshing Co-Rotating Tri-Screw and Twin-Screw Extruders

2012 ◽  
Vol 468-471 ◽  
pp. 2211-2214 ◽  
Author(s):  
G. Wang ◽  
X.Z. Zhu ◽  
Chun Yi Sun
Keyword(s):  
Shear Rate ◽  
Polymer Melt ◽  
Polymer Processing ◽  
Mixing Efficiency ◽  
Twin Screw Extruder ◽  
Screw Extruder ◽  
Twin Screw Extruders ◽  
Mixing Performance ◽  
Twin Screw ◽  
Dispersive Mixing

Parallel arranged tri-screw extruder (PATSE) is a new machine of polymer processing and first manufactured in recent years in China. Compared with the traditional twin-screw extruder, PATSE adds a screw, and added an intermeshing region. It is well known that material going though intermeshing region will acquire higher shear rate and stretching rate, which is beneficial to mixing processing. In order to know the mixing performance in cross-section for PATSE, polymer melt flow field simulation and mixing simulation were conducted on PATSE with 2D model and a Carreau flow model to evaluate velocity profiles, particle trajectories, max shear rate, max stretching rate, dispersive mixing, distributive mixing, segregation scale, length of stretch, mixing efficiency with the commercial CFD package Polyflow and compared with those of twin screw extruder (TSE). The results show that PATSE has better mixing performance than TSE.

scholarly journals Numerical study on mixing performance of glass fiber dispersion in a twin-screw extruder with backward-mixing elements

2015 ◽  
Author(s):  
Kunihiro Hirata ◽  
Hiroshi Ishida ◽  
Motohiro Hiragori ◽  
Yasuya Nakayama ◽  
Toshihisa Kajiwara
Keyword(s):  
Glass Fiber ◽  
Numerical Study ◽  
Twin Screw Extruder ◽  
Screw Extruder ◽  
Fiber Dispersion ◽  
Mixing Performance ◽  
Twin Screw

scholarly journals The optimization of Blister Disk geometry for mixing performance in co-rotating twin-screw extruder

2015 ◽  
Author(s):  
Koki Matsumoto ◽  
Natsuki Kayamori ◽  
Tatsuya Tanaka ◽  
Yoshihiko Arao
Keyword(s):  
Twin Screw Extruder ◽  
Screw Extruder ◽  
Mixing Performance ◽  
Twin Screw

Simulation of the Mixing in a Novel Fully Wiped Co-Rotating Non-Twin Screws

2012 ◽  
Vol 560-561 ◽  
pp. 1091-1096 ◽  
Author(s):  
Bai Ping Xu ◽  
Hui Wen Yu
Keyword(s):  
Probability Distributions ◽  
The Novel ◽  
Mixing Index ◽  
Mixing Performance ◽  
Twin Screw ◽  
Mixing Ability ◽  
Superposition Technique ◽  
Dispersive Mixing ◽  
Twin Screws ◽  
Screw Group

This work aims at simulation of the mixing performance in the novel co-rotating non-twin screw group developed by the authors. The simulation concerns the incompressible fluid obeying Carreau flow model. Using the mesh superposition technique, the mixing performance in such novel mixing sections, as well as in the conventional twin screw groups with one and two tips, are simulated. Adopting the particle tracking technique, distributive mixing is visualized by the evolution of the mixing of a cluster of particles in addition to using the segregation scale. Dispersive mixing is evaluated using mixing index in combination with the probability distributions of cumulative mixing index. The computational results reveal that the novel screw group is superior in mixing ability.

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