Abstract
When modeling the melt-conveying zone of single-screw extruders, generally the flat-plate model is applied. Using a cylindrical reference frame, we investigated the effect of channel curvature on flow rate and viscous dissipation, considering a two-dimensional, fully developed, isothermal flow of a power-law fluid. Re-writing the flow equations and applying the theory of similarity revealed the existence of four independent influencing parameters: Π_(p,z), n, t⁄D_b , and h⁄D_b . Based on these, we carried out a comprehensive parametric study investigating flow rate and viscous dissipation. Our results show that the channel-height-to-diameter ratio has a significant influence on both flow rate and viscous dissipation.
| Original language | English |
|---|---|
| Title of host publication | SPE ANTEC 2018, Orlando, USA |
| Place of Publication | Orlando, USA |
| Publisher | SPE ANTEC |
| Number of pages | 7 |
| Publication status | Published - 2018 |
Fields of science
- 205011 Polymer engineering
- 102009 Computer simulation
- 205012 Polymer processing
- 104019 Polymer sciences