The effect of shear viscosity on attenuation is much more than that of bulk viscosity.
For "weak viscosity," the attenuation is directly proportional to the viscosity modulus and the shear viscosity has a greater impact on the dispersion curves than does the bulk viscosity.
The viscosity-induced attenuation of otherwise propagating 'fluid-originated' and 'structure-originated' waves is quantified.
Here, we consider the phenomenon from the viewpoint of attenuation caused by viscosity of adhesive layers.
Since the cutoff frequency is lower, the attenuation caused by viscosity is very small while that caused by pseudo-SAWs is very large.
For the physical effects which are related with a change in the viscosity of the solution, an attenuation of the acid effect due to the presence of another acid at high concentration was evident.
Upon aging however, systematic attenuation of thixotropy, suspension viscosity, shear yield stress and viscoelasticity occurred.
A smooth change in wave propagation exists at a small viscosity, whereas the wave velocity and attenuation decrease sharply at a high viscosity as heavy oil.
An inversion algorithm is formulated to determine the liquid viscosity from the wave speed and attenuation data.
The relationship between attenuation and frequency or viscosity is nonlinear, but the former is a concave curve, whereas the latter is a convex curve.
The dispersive relations are obtained and the effects of liquid viscosity on the phase velocity and attenuation of the waves are analyzed and discussed.
