Linear stability of viscoelastic Taylor-Couette flow: influence of fluid rheology and energetics

U. A. Al-Mubaiyedh, R. Sureshkumar, B. Khomami

Research output: Contribution to journalArticle

27 Scopus citations

Abstract

The influence of detailed fluid rheology and energetics on the stability of purely elastic Taylor-Couette flow was studied using thermodynamically consistent viscoelastic constitutive models. Isothermal analyses revealed that over a broad range of solvent viscosities the nonaxisymmetric mode is the most dangerous eigenmode and the critical Deborah number is reduced as the number of relaxation modes is increased. It was observed that the details of the fluid rheology can influence the onset conditions.

Original languageEnglish (US)
Pages (from-to)1121-1138
Number of pages18
JournalJournal of Rheology
Volume44
Issue number5
DOIs
StatePublished - Sep 1 2000
Externally publishedYes

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ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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