Flow field analysis of an intermeshing counterrotating twin screw extruder | Zendy

Li Tao | Zendy; ManasZloczower Ica | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Premium

Flow field analysis of an intermeshing counterrotating twin screw extruder

Author(s) -

Li Tao,

ManasZloczower Ica

Publication year - 1994

Publication title -

polymer engineering and science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.503

H-Index - 111

eISSN - 1548-2634

pISSN - 0032-3888

DOI - 10.1002/pen.760340703

Subject(s) - shearing (physics) , materials science , plastics extrusion , mechanics , extrusion , rheology , finite element method , flow (mathematics) , power law fluid , rotational speed , shear (geology) , mechanical engineering , composite material , structural engineering , engineering , physics

The intermeshing counterrotating twin screw extruder is widely used for compounding, devolatilization, blending, and reactive extrusion. A fluid dynamics analysis package‐FIDAP, using the finite element method, was implemented to simulate the 3‐D flow patterns in the region of conveying elements and shearing discs of a Leistritz LSM30.34 twin screw extruder. The rheological behavior of the fluid was described by a power law model. The flow fields were characterized in terms of velocity profiles, pressure distributions, shear stresses generated, and a parameter λ quantifying the elongational flow components. The influence of screw rotational speed and axial pressure difference on the flow characteristics was also analyzed. A comparison between the flow characteristics in the shearing discs operated in a corotating or counterrotating mode was also presented.

This content is not available in your region!

Continue researching here.

Having issues? You can contact us here

Accelerating Research