Inverse problem solution of squeeze flow for parameters of generalized Newtonian fluid and wall slip

D. M. Kalyon, H. S. Tang

Research output: Contribution to journalArticlepeer-review

Abstract

The determination of the parameters describing the shear viscosity and wall slip behavior of complex fluids, including polymer melts, polymeric suspensions, and polymeric gels, is a challenge. Here we use the squeeze flow of generalized Newtonian fluids with and without wall slip to generate an inverse problem solution methodology for the estimation of the parameters of the shear viscosity and wall slip. Analytical as well as the finite element method (FEM) based numerical solutions of the squeeze flow are used for the analysis and the determination of the parameters. It is suggested that the analytical and numerical analyses can provide the basic where withal necessary for the solution of the inverse problem of squeeze flows to characterize the shear viscosity and the wall slip parameters provided that the issues of uniqueness and stability are properly addressed.

Original languageEnglish
Pages (from-to)133-140
Number of pages8
JournalJournal of Non-Newtonian Fluid Mechanics
Volume143
Issue number2-3
DOIs
StatePublished - May 18 2007

ASJC Scopus subject areas

  • General Chemical Engineering
  • General Materials Science
  • Condensed Matter Physics
  • Mechanical Engineering
  • Applied Mathematics

Keywords

  • Inverse problem
  • Squeeze flow
  • Viscoplasticity
  • Wall slip

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