This is because viscoelasticity
is not significant for previously selected viscoelasticity
However, the effect of viscoelasticity
and relaxation time on hysteresis and stability evolution of the DE was neglected in previously reported papers.
In consideration of the moderate permeability reduction, the highest RF value for HAP-CDE system might be mainly ascribed to the improvement of viscosity and viscoelasticity
Measurement of Viscosity and Viscoelasticity
. Viscosity was measured to evaluate the viscosity characteristics of each ointment (Figure 3).
On abstract Volterra equations with applications to linear viscoelasticity
Based on the viscoelasticity
mechanics principle, it is found that the combined effects of elastic and viscoelastic are the basic reason of causing the dilatancy in brittle rock.
The polymer microstructure has important effects on the viscoelasticity
of the fracturing fluid, but the relationship between the drag reduction mechanism and the microstructure of the polymer drag reducer has not yet been directly established .
Boltzman principle of superposition is used to determine the correlation between deformation and stresses of linear viscoelasticity
materials at intermittent stress or deformation loading.
It proved PVB as a highly rate dependent material which is partially related to its viscoelasticity
. Further, Xu et al.
The variable order differentials are an important tool to study some systems such as the control of nonlinear viscoelasticity
oscillator (for more details see [17-19] and the references cited therein), where the order changes with respect to a parameter or more parameters.
Writing for student or practicing scientists and engineers who have had some exposure to engineering mathematics and strength of materials, he explores topics in tensor analysis, elasticity in two and three dimensions, plasticity, fracture mechanics, viscoelasticity
, poroelasticity, and dynamics that are relevant to modeling geomaterials.
On the other hand, Oil Displacement Efficiency was improved, mainly using viscoelasticity
of polymer solution to increase the stress acting on the residual oil, make the residual oil produce larger deformation and lead to fracture.