Abstract
Being able to include the shear-thinning behavior of polymer melts in the theoretical analysis of melt-conveying and pressurization generally involves the application of numerical techniques. We have recently proposed a fast and accurate analytical approximation method for predicting the pumping characteristics of power-law fluids in three-dimensional metering channels. Removing the need for time-consuming simulations, this novel theory provides an algebraic throughput-pressure gradient relationship that can be implemented easily in real screw designs. By considering the three-dimensional geometry of the screw channel and the non-Newtonian flow behavior of the polymer melt, our model is a close representation of the actual physical process. Here, we revisit the design of the heuristic model, present further results, and validate the method against additional numerical solutions.
| Original language | English |
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| Title of host publication | ANTEC® 2018 - Orlando, Florida, USA May 7-10, 2018.Society of Plastics Engineers |
| Number of pages | 6 |
| Publication status | Published - 2018 |
Fields of science
- 205 Materials Engineering
- 205011 Polymer engineering
- 102009 Computer simulation
- 102033 Data mining
- 104018 Polymer chemistry
- 205012 Polymer processing
- 104019 Polymer sciences