CFD in the Capillary Rheometry of Polyethylene Melts

Evan Mitsoulis, Savvas G. Hatzikiriakos

Abstract

The capillary flow of a commercial LDPE melt was studied both experimentally and numerically. The excess pressure drop due to entry (Bagley correction), the compressibility, the effect of pressure and temperature on viscosity on the capillary data analysis have been examined. It was found that only the viscoelastic simulations (using the K-BKZ constitutive relation) were capable of reproducing the experimental data well, while any viscous modeling always underestimates the pressures, especially at the higher apparent shear rates and L/D ratios.

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Paper Citation


in Harvard Style

Mitsoulis E. and G. Hatzikiriakos S. (2012). CFD in the Capillary Rheometry of Polyethylene Melts . In Proceedings of the 2nd International Conference on Simulation and Modeling Methodologies, Technologies and Applications - Volume 1: SIMULTECH, ISBN 978-989-8565-20-4, pages 291-296. DOI: 10.5220/0003963602910296


in Bibtex Style

@conference{simultech12,
author={Evan Mitsoulis and Savvas G. Hatzikiriakos},
title={CFD in the Capillary Rheometry of Polyethylene Melts},
booktitle={Proceedings of the 2nd International Conference on Simulation and Modeling Methodologies, Technologies and Applications - Volume 1: SIMULTECH,},
year={2012},
pages={291-296},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0003963602910296},
isbn={978-989-8565-20-4},
}


in EndNote Style

TY - CONF
JO - Proceedings of the 2nd International Conference on Simulation and Modeling Methodologies, Technologies and Applications - Volume 1: SIMULTECH,
TI - CFD in the Capillary Rheometry of Polyethylene Melts
SN - 978-989-8565-20-4
AU - Mitsoulis E.
AU - G. Hatzikiriakos S.
PY - 2012
SP - 291
EP - 296
DO - 10.5220/0003963602910296