Numerical Simulation of Viscoelastic Extrudate Swell Through Elliptical Ring Die

许星明; 赵国群; 秦升学; 王威

doi:10.1016/S1004-9541(09)60170-1

Your Location：

Home >

Browse articles >

Numerical Simulation of Viscoelastic Extrudate Swell Through Elliptical Ring Die

Updated：2026-01-06

- Numerical Simulation of Viscoelastic Extrudate Swell Through Elliptical Ring Die
- Chinese Journal of Chemical Engineering Vol. 19, Issue 1, Pages: 10-17(2011)
- Affiliations：
  
  1. College of Mechanical and Electrical Engineering, Shandong University of Science and Technology, Tai’an,China,271019
  2. Engineering Research Center for Mold&Die Technologies, Shandong University,Jinan,China,250061
  3. College of Mechanical and Electrical Engineering, Shandong University of Science and Technology,Qingdao,China,266510
- Author bio：
- Funds：
- DOI：10.1016/S1004-9541(09)60170-1
  CLC：
- Published：2011
- Accepted：
Scan QR Code
XU Xingming, ZHAO Guoqun, QIN Shengxue, WANG Wei. Numerical Simulation of Viscoelastic Extrudate Swell Through Elliptical Ring Die[J]. , 2011, 19(1): 10-17.
DOI：

XU Xingming, ZHAO Guoqun, QIN Shengxue, WANG Wei. Numerical Simulation of Viscoelastic Extrudate Swell Through Elliptical Ring Die[J]. , 2011, 19(1): 10-17. DOI： 10.1016/S1004-9541(09)60170-1.

摘要

Abstract

The numerical simulation of extrudate swell is significant in extrusion processing.Precise prediction of extrudate swell is propitious to the control of melt flow and the quality of final products.A mathematical model of three-dimensional(3D)viscoelastic flow through elliptical ring die for polymer extrusion was investigated.The penalty function formulation of viscoelastic incompressible fluid was introduced to the finite element model to analyze 3D extrusion problem.The discrete elastic viscous split stress(DEVSS)and streamline-upwind PetrovGalerkin(SUPG)technology were used to obtain stable simulation results.Free surface was updated by updating the streamlines which needs less memory space.According to numerical simulation results

the effect of zero-shear viscosity and elongation parameter on extrudate swell was slight

but with the increase of volumetric flow rate and relax time the extrudate swell ratio increased markedly.Finally

the numerical simulation of extrudate swell flow for low-density polyethylene(LDPE)melts was investigated and the results agreed well with others’work.These conclusions provided quantitative basis for the forecasting extrudate swell ratio and the controlling of extrusion productivity shape.

关键词

Keywords

references

Views

1400

Downloads

CSCD

Alert me when the article has been cited

Submit

Tools

Publicity Resources

A comparative analysis of unsteady and steady Buongiorno's Williamson nanoliquid flow over a wedge with slip effects

Synergistically coupling of vertically oriented Ru/Co co-doped MoS2 with interfacial engineering for efficient electrochemical hydrogen evolution

Tailoring the molecular structure of cross-linked poly(ethylene oxide) membranes for enhanced CO2 permeation

Bubble dispersion intensification via flow guidance and drainage in a bubble column with internals

COS generation behavior during desulfurization for H2S over zeolite in simulated blast furnace gas

Related Author

R. Chandra Sekhar Reddy

P. Sudarsana Reddy

Related Institution

Department of Mathematics, Rajeev Gandhi Memorial Collge of Engineering&Technology, Nandyal, A..

⁰