CFD in the Capillary Rheometry of Polyethylene Melts

Evan Mitsoulis; Savvas G. Hatzikiriakos

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Paper

CFD in the Capillary Rheometry of Polyethylene Melts

Topics: Fluid Dynamics

In Proceedings of the 2nd International Conference on Simulation and Modeling Methodologies, Technologies and Applications SIMULTECH - Volume 1, 291-296, 2012 , Rome, Italy

Authors: Evan Mitsoulis ¹ and Savvas G. Hatzikiriakos ²

Affiliations: ¹ National Technical University of Athens, Greece ; ² The University of British Columbia, Canada

Keyword(s): Capillary Rheometery, Polyethylenes, Entrance Pressure, Viscous.

Related Ontology Subjects/Areas/Topics: Complex Systems Modeling and Simulation ; Fluid Dynamics ; Simulation and Modeling

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 several formats:

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 - SIMULTECH; ISBN 978-989-8565-20-4; ISSN 2184-2841, SciTePress, pages 291-296. DOI: 10.5220/0003963602910296

@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 - SIMULTECH},
year={2012},
pages={291-296},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0003963602910296},
isbn={978-989-8565-20-4},
issn={2184-2841},
}

TY - CONF

JO - Proceedings of the 2nd International Conference on Simulation and Modeling Methodologies, Technologies and Applications - SIMULTECH
TI - CFD in the Capillary Rheometry of Polyethylene Melts
SN - 978-989-8565-20-4
IS - 2184-2841
AU - Mitsoulis, E.
AU - G. Hatzikiriakos, S.
PY - 2012
SP - 291
EP - 296
DO - 10.5220/0003963602910296
PB - SciTePress