An experimental and simulation comparison of a 3-D abrupt contraction flow using the molecular stress function constitutive model
- Submitting institution
-
The University of Bradford
- Unit of assessment
- 12 - Engineering
- Output identifier
- 59
- Type
- D - Journal article
- DOI
-
10.1080/14658011.2020.1826195
- Title of journal
- Plastics, Rubber and Composites
- Article number
- -
- First page
- 1
- Volume
- 50
- Issue
- 1
- ISSN
- 1465-8011
- Open access status
- Compliant
- Month of publication
- -
- Year of publication
- 2020
- URL
-
https://www.tandfonline.com/doi/abs/10.1080/14658011.2020.1826195?journalCode=yprc20
- Supplementary information
-
-
- Request cross-referral to
- -
- Output has been delayed by COVID-19
- No
- COVID-19 affected output statement
- -
- Forensic science
- No
- Criminology
- No
- Interdisciplinary
- No
- Number of additional authors
-
3
- Research group(s)
-
-
- Proposed double-weighted
- No
- Reserve for an output with double weighting
- No
- Additional information
- The Molecular Stress Function constitutive model has been shown to accurately fit a large range of polymer viscometric data. This work compares 3-D simulation with experimental results for complex 3-D flows of LDPE. Comparisons are made with stress birefringence and vortex opening angle measurements, which are both very sensitive to polymer rheology. The simulated stress birefringence from a particular development of the Convective Constraint Release mechanism is shown to be in close agreement with measurement, and vortex opening angles are also shown to approach experimental results. The work represents a significant advance towards quantitative polymer melt flow simulation.
- Author contribution statement
- -
- Non-English
- No
- English abstract
- -
