Multiscale Modeling of Expanding Polyurethane Foams via Computational Fluid Dynamics and Population Balance Equation

Summary This study is aimed to formulate a numerical modeling recipe for polyurethane foams. The model is capable of simulating the foam principal characteristics during mold filling. The model is formulated upon coupling of Computational Fluid Dynamics (CFD) and Population Balance Equation (PBE) to...

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Veröffentlicht in:Macromolecular symposia. Jg. 360; H. 1; S. 108 - 122
Hauptverfasser: Karimi, Mohsen, Droghetti, Hermes, Marchisio, Daniele L.
Format: Journal Article
Sprache:Englisch
Veröffentlicht: Weinheim Blackwell Publishing Ltd 01.02.2016
Wiley Subscription Services, Inc
Schlagworte:
Bubbles
Computational fluid dynamics
computer modeling
Computer simulation
Fluid dynamics
Mathematical analysis
Mathematical models
Modelling
Plastic foam
Polyurethane foam
polyurethanes
population balance equation
quadrature method of moments
Simulation
ISSN:1022-1360, 1521-3900
Online-Zugang:Volltext
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Zusammenfassung:Summary This study is aimed to formulate a numerical modeling recipe for polyurethane foams. The model is capable of simulating the foam principal characteristics during mold filling. The model is formulated upon coupling of Computational Fluid Dynamics (CFD) and Population Balance Equation (PBE) to predict and simulate the evolution of foam features including apparent density and viscosity, bubble (or cell) size distribution (BSD) during the polymerization, as well as its kinetics. The solution of PBE inside the CFD code is performed with Quadrature Method of Moments (QMOM). The foam, constituted by a liquid polymer and gas bubbles, is simulated as a pseudo‐single‐phase system, while the interface between the foam and the surrounding air is tracked by a Volume‐of‐Fluid (VOF) solver within the open‐source CFD code OpenFOAM. The modeling is applied for a simple foaming experiment and attention is paid to the effect of the rheological model on the predictions.
Bibliographie:ark:/67375/WNG-CB127D0H-Z
ArticleID:MASY201500108
istex:F8C3EEB551DE62F19FDA07BC7BD7EC32E4FCB17F
European Commission - No. 604271
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
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ISSN:1022-1360
1521-3900
DOI:10.1002/masy.201500108