Encyclopedic Dictionary of Polymers

2011 Edition
| Editors: Jan W. Gooch

Weissenberg Number

  • Jan W. Gooch
Reference work entry
DOI: https://doi.org/10.1007/978-1-4419-6247-8_12776

(New) In the flow of viscoelastic liquids, the dimensionless Weissenberg number represents the ratio of the viscoelastic force to the viscous force and has sometimes been equated to N1/2τ, where N1 = the first normal stress in a viscoelastic fluid flowing in simple shear and τ = the shear stress.

Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  • Jan W. Gooch
    • 1
  1. 1.AtlantaUSA