Numerical simulation of multi-layer flow for polymer melts - A study of the effect of viscoelasticity on interface shape of polymers within dies

K. Matsunaga, Toshihisa Kajiwara, K. Funatsu

研究成果: Contribution to journalArticle査読

32 被引用数 (Scopus)

抄録

A two-dimensional simulation was developed for multi-layer confluent viscoelastic flow in dies, using a finite element method. The simulated interface shape was compared with the experimental results of previous researchers, and the simulated results were confirmed. Two-layer and three-layer flows of two or three kinds of viscoelastic fluids were simulated. Fluids with different non-Newtonian viscosities and the first normal stress differences were used. The layer thicknesses in dies are mainly determined by the shear viscosity and less by the elasticity of the fluid. The normal stress difference between the fluids forming an interface may be related to interfacial instability, and normal stresses near the interface were examined. The normal stress difference between both fluids was affected by the first normal stress difference and elongational viscosity.

本文言語英語
ページ(範囲)1099-1111
ページ数13
ジャーナルPolymer Engineering and Science
38
7
DOI
出版ステータス出版済み - 1 1 1998
外部発表はい

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Polymers and Plastics
  • Materials Chemistry

フィンガープリント 「Numerical simulation of multi-layer flow for polymer melts - A study of the effect of viscoelasticity on interface shape of polymers within dies」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル