Well-Characterized Low Viscosity Elastic Liquids

Graham M. Harrison, D. V. Boger
2000 Applied Rheology  
A series of low and constant viscosity elastic liquids are constructed and are studied rheologically. Steady shear viscosity and normal stresses, dynamic properties, and an apparent extensional viscosity are measured using well-established techniques. The rheological characteristics of the solution are used to help explain the physical basis for non-Newtonian phenomena in short time scale processes such as jet breakup, splash, spray atom-isation and swirling flow. It is demonstrated that even
more » ... strated that even when the shear viscosity is maintained at a constant value, significant differences occur in processes due to the differences in the elasticity of the fluids. Some implications for these observations are discussed. The paper is an overview on our work on elastic effects in the flow of low viscosity fluids. It reflects the verbal presentation made at the Professor John D. Ferry Symposium at the 71st Annual Meeting of the Society of Rheology.
doi:10.1515/arh-2000-0010 fatcat:gg2qnkb4tvhrtppfr6xcjny3z4