Abstract
The dynamic shear viscosities for both in- line and transverse oscillations, superposed on steady simple shearing, have been measured experimentally. It has been found that at large values of the frequency of oscillation, these dynamic viscosities approach the zero shear dynamic viscosity, measured according to the linear theory of voscoelasticity. It is the purpose of this note to derive these ultrasonic limits by a theoretical study of the incompressible BKZ fluid. It is also shown by a counterexample that these limits do not hold for all simple fluids.
| Original language | English |
|---|---|
| Pages (from-to) | 731-739 |
| Number of pages | 9 |
| Journal | Trans Soc Rheol |
| Volume | 15 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - Dec 1971 |
| Externally published | Yes |