Transient shear and extensional rheology of dilute and semi-dilute polymer solutions
Conference
·
OSTI ID:602938
- Ohio State Univ., Columbus, OH (United States)
A filament stretching extensional rheometer is used to measure the transient extensional viscosity of Boger fluids with varying polymer concentrations. Experiments are run at a variety of extension rates and reach large Hencky strains. Comparisons are made to measurements of transient shear flow. Results are modeled using several constitutive equations including the Giesekus Model. The apparent steady-state extensional viscosity is compared to Batchelor`s Model for rigid-rod suspensions.
- OSTI ID:
- 602938
- Report Number(s):
- CONF-961108--; CNN: Grant No. CTS-9624293
- Country of Publication:
- United States
- Language:
- English
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