The elastic instability of fountain flows

Research output: Chapter in Book/Report/Conference proceedingChapterAcademicpeer-review


In order to elucidate the mechanism that causes flow mark surface defects, the stabihty of the fountain flow during injection molding is investigated numerically using a transient finite element method. Using a single mode extended Pom-Pom model we demonstrate that the fountain flow instabiUty is an elastic instability.

Original languageEnglish
Title of host publicationComputational Fluid and Solid Mechanics 2003
Subtitle of host publicationProceedings Second MIT Conference on Compurational Fluid and Solid Mechanics June 17–20, 2003
Place of PublicationAmsterdam
Number of pages3
ISBN (Electronic)9780080529479
ISBN (Print)9780080440460
Publication statusPublished - 2 Jun 2003


  • Elastic instability
  • Fountain flow
  • Injection molding
  • Viscoelastic flow


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