• Corpus ID: 245906398

Role of Micellar Entanglement Density on Kinetics of Shear Banding Flow Formation: Experiments and a Comparison with the VCM model

@inproceedings{Rassolov2022RoleOM,
  title={Role of Micellar Entanglement Density on Kinetics of Shear Banding Flow Formation: Experiments and a Comparison with the VCM model},
  author={Peter Rassolov and Lin Zhou and Pamela Cook and Hadi Mohammadigoushki},
  year={2022}
}
We investigate the effects of micellar entanglement density on the kinetics of shear banding flow formation in a Taylor-Couette flow via a combination of experiments and simulations of the Vasquez-Cook-McKinley (VCM) model. In experiments, three sets of wormlike micellar solutions, each set with a similar fluid elasticity and zero-shearrate viscosity, but with varying entanglement densities, are studied under start-up of steady shear. Our experiments indicate that in the set with the low fluid… 
1 Citations
Kinetics of Shear Banding Flow Formation in Linear and Branched Wormlike Micelles
TLDR
While elastic instabilities in the linear solution emerge in the high shear band, the flow of branched solution at high Wi becomes unstable due to end effects, with growing end regions that ultimately span the entire axial length of the TC cell.

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