Visco-Elastic Models

Visco-elastic models can be created for real fluids, these are often called Spring and Dash-pot models. The video below gives an introduction to these,

The graph below shows some of the common models, you can vary the spring constants and dash-pot viscosities to examine how they affect the storage and loss modulus and the steady-state viscosity if the Cox-Merz rule holds.

visco-elastic models

E1
100 MPa
E2
1 MPa
η1
1000 MPa.s
η2
1 MPa.s
100μ0.01110010k1M10010k1M100M10B100μ0.01110010k1M10010k1M100M10B
Cox-Merz ViscosityG′G″γ / s​-1ω / s​-1μ / Pa sG′,G″ / Pa