Numerical Prediction of Non-Isothermal Flow of Nylon-6 Past a Cylinder Between Plates

G. H. Wu, S. J. Ju, C. C. Wu

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


Numerical simulations were undertaken for the non-isothermal creeping flow of a nylon-6 melt past a circular cylinder between plates. The fluid model used for this flow simulation is a non-isothermal White-Metzner constitutive equation, which describes the non-Newtonian behavior of nylon-6. The results were computed by an elastic-viscous split stress finite element method (EVSS-FEM), a mixed finite element method, incorpor-ating the streamline upwind Petrov-Galerkin (SUPG) scheme. To verify the numerical algorithm, it was first applied to compute the corresponding isothermal flow of a shearthinning solution of 5 wt% polyisobutylene in tetradecane (PIB/C14), modeled by the Phan-Thien Tanner model. The resulting velocity and stress fields were compared with known experimental data. Subsequently, both the isothermal and non-isothermal drag forces on the cylinder and the local heat transfer coefficients along the cylinder wall and channel wall were predicted. The effects of fluid elasticity, shear-thinning, temperature-thinning, and heat transfer were investigated.

Original languageEnglish
Pages (from-to)287-304
Number of pages18
JournalJournal of Polymer Engineering
Issue number4
Publication statusPublished - 1999 Jun

All Science Journal Classification (ASJC) codes

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

Fingerprint Dive into the research topics of 'Numerical Prediction of Non-Isothermal Flow of Nylon-6 Past a Cylinder Between Plates'. Together they form a unique fingerprint.

Cite this