Numerical simulation of pressure and velocity profiles in kneading elements of a co-rotating twin screw extruder

2000 ◽  
Vol 40 (2) ◽  
pp. 525-541 ◽  
Author(s):  
V. L. Bravo ◽  
A. N. Hrymak ◽  
J. D. Wright
Keyword(s):  
Numerical Simulation ◽  
Velocity Profiles ◽  
Twin Screw Extruder ◽  
Screw Extruder ◽  
Twin Screw

scholarly journals Numerical Simulation of Non-isothermal Flow and Evaluatin of Mixing in Kneading Block of Co-rotating Twin Screw Extruder.

Seikei-Kakou ◽  
1999 ◽  
Vol 11 (6) ◽  
pp. 502-509 ◽  
Author(s):  
Takeshi ISHIKAWA ◽  
Shin-ichi KIHARA ◽  
Kazumori FUNATSU ◽  
Taro AMANO
Keyword(s):  
Numerical Simulation ◽  
Isothermal Flow ◽  
Twin Screw Extruder ◽  
Screw Extruder ◽  
Twin Screw

Measurement of velocity profiles in reverse-screw elements of a twin-screw extruder

AIChE Journal ◽  
1997 ◽  
Vol 43 (10) ◽  
pp. 2424-2431 ◽  
Author(s):  
Murali Chandrasekaran ◽  
Mukund V. Karwe
Keyword(s):  
Velocity Profiles ◽  
Twin Screw Extruder ◽  
Screw Extruder ◽  
Twin Screw

scholarly journals Optimization and Numerical Simulation of Outlet of Twin Screw Extruder

2018 ◽  
Vol 153 ◽  
pp. 05004
Author(s):  
Yuan Zhang ◽  
Xiaohan Jiang ◽  
Huaping Fan ◽  
Xihan Li
Keyword(s):  
Numerical Simulation ◽  
Interpolation Method ◽  
Reverse Flow ◽  
Linear Interpolation ◽  
Mechanical Analysis ◽  
Rheological Parameters ◽  
Twin Screw Extruder ◽  
Screw Extruder ◽  
Twin Screw ◽  
Improved Model

In view of the unreasonable design of non-intermeshing counter-rotating twin screw extruder die, the problem of productivity reduction was discussed. Firstly, the mathematical model of extruder productivity was established. The extruder die model was improved. Secondly, the force analysis of twin screw extruder physical model was carried out. Meanwhile, A combination of mechanical analysis and numerical simulation was adopted. The velocity field, pressure field and viscosity field were calculated by Mini-Element interpolation method, linear interpolation method and Picard iterative convergence method respectively. The influence of die model on the quantity of each field before and after improvement was analyzed. The results show that the improved model had increased the rheological parameters of the flow field, the leakage and reverse flow decreased. Through post-processing calculation, the productivity of the third dies extruder was 10% higher than before. The research results provide a theoretical basis for the design and optimization of die model of non intermeshing counter-rotating twin screw extruder.

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