Viscoelastic Effect on Hydrodynamic Relaxation in Polymer Solutions
Akira Furukawa
TL;DR
This paper investigates how viscoelastic effects influence hydrodynamic relaxation in semidilute polymer solutions, revealing a wave-number-dependent shear viscosity due to dynamical asymmetry coupling.
Contribution
It introduces a theoretical prediction that viscoelastic effects cause wave-number-dependent shear viscosity through dynamical asymmetry coupling in polymer solutions.
Findings
Viscoelastic effects alter hydrodynamic relaxation.
Wave-number-dependent shear viscosity is predicted.
Dynamical asymmetry coupling influences relaxation processes.
Abstract
The viscoelastic effect on the hydrodynamic relaxation in semidilute polymer solutions is investigated. From the linearized two-fluid model equations, we predict that the dynamical asymmetry coupling between the velocity fluctuations and the viscoelastic stress influences on the hydrodynamic relaxation process, resulting in a wave-number-dependent shear viscosity.
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