Next Article in Journal
Advanced Control over Cell-Material Interfaces
Next Article in Special Issue
Nucleation Enhancement in Stereodefective Poly(l-lactide) by Free Volume Expansion Resulting from Low-Temperature Pressure CO2 Preconditioning
Previous Article in Journal
Hydroxypropyltrimethyl Ammonium Chloride Chitosan Functionalized-PLGA Electrospun Fibrous Membranes as Antibacterial Wound Dressing: In Vitro and In Vivo Evaluation
Previous Article in Special Issue
Prediction of Flow Effect on Crystal Growth of Semi-Crystalline Polymers Using a Multi-Scale Phase-Field Approach
Article Menu
Issue 12 (December) cover image

Export Article

Open AccessArticle
Polymers 2017, 9(12), 699;

Macro-Micro Simulation for Polymer Crystallization in Couette Flow

School of Mathematics and Statistics, Henan University of Science and Technology, Luoyang 471023, China
College of Vehicle & Motive Power Engineering, Henan University of Science and Technology, Luoyang 471023, China
Author to whom correspondence should be addressed.
Received: 15 November 2017 / Revised: 7 December 2017 / Accepted: 8 December 2017 / Published: 11 December 2017
(This article belongs to the Special Issue Phase Behavior in Polymers)
Full-Text   |   PDF [4692 KB, uploaded 11 December 2017]   |  


Polymer crystallization in manufacturing is a process where quiescent crystallization and flow-induced crystallization coexists, and heat/mass transfer on a macroscopic level interacts with crystal morphology evolution on a microscopic level. Previous numerical studies on polymer crystallization are mostly concentrated at a single scale; they only calculate macroscale parameters, e.g., temperature and relative crystallinity, or they only predict microstructure details, e.g., crystal morphology and mean size of crystals. The multi-scale numerical works that overcome these disadvantages are unfortunately based on quiescent crystallization, in which flow effects are neglected. The objective of this work is to build up a macro-micro model and a macro-micro algorithm to consider both the thermal and flow effects on the crystallization. Our macro-micro model couples two parts: mass and heat transfer of polymeric flow at the macroscopic level, and nucleation and growth of spherulites and shish-kebabs at the microscopic level. Our macro-micro algorithm is a hybrid finite volume/Monte Carlo method, in which the finite volume method is used at the macroscopic level to calculate the flow and temperature fields, while the Monte Carlo method is used at the microscopic level to capture the development of spherulites and shish-kebabs. The macro-micro model and the macro-micro algorithm are applied to simulate polymer crystallization in Couette flow. The effects of shear rate, shear time, and wall temperature on the crystal morphology and crystallization kinetics are also discussed. View Full-Text
Keywords: macro-micro simulation; flow-induced crystallization; Monte Carlo method; crystal morphology macro-micro simulation; flow-induced crystallization; Monte Carlo method; crystal morphology

Graphical abstract

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

Share & Cite This Article

MDPI and ACS Style

Ruan, C.; Liang, K.; Liu, E. Macro-Micro Simulation for Polymer Crystallization in Couette Flow. Polymers 2017, 9, 699.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Polymers EISSN 2073-4360 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top