Now showing items 1-6 of 6
Padé Approximant for Normal Stress Differences in Large-Amplitude Oscillatory Shear Flow
Analytical solutions for the normal stress differences in large-amplitude oscillatory shear flow (LAOS), for continuum or molecular models, normally take the form of the first few terms of a series expansion in the shear ...
Macromolecular Tumbling and Wobbling in Large-Amplitude Oscillatory Shear Flow
For a suspension of rigid dumbbells, in any simple shear flow, we recently solved for the diffusion equation for the orientation distribution function by a power series expansion in the shear rate magnitude. In this paper, ...
Polymer Orientation Contributions in Large-Amplitude Oscillatory Shear Flow
Previously, we used a dilute suspension of rigid dumbbells as a model for the dynamics for polymeric liquids in large-amplitude oscillatory shear (LAOS) flow. We then use dumbbell orientation to explain fluid elasticity. ...
Review of Nonlinear Oscillatory Shear Flow Notations and Presentations: Polymeric Liquids
We review notations for, along with ways of presenting, the shear stress responses to large-amplitude oscillatory shear flow (LAOS). We find that the Fourier loss and storage viscosities to be the simplest primal notations ...
Molecular Continua for Polymeric Liquids in Large-Amplitude Oscillatory Shear Flow
In this paper, we connect a molecular description of the rheology of a polymeric liquid to a continuum description, and then test this connection for large-amplitude oscillatory shear flow (LAOS). Specifically, for the ...
Thermodynamic Instability of Polymeric Liquids in Large-Amplitude Oscillatory Shear Flow from Corotational Maxwell Fluid
When polymeric liquids are subjected to oscillatory shear flow, if the amplitude of the shear rate is high enough, the shear stress response will become aperiodic. This has been variously attributed to fracture, common ...