VISCOSITY SHEAR-WAVES AND MASS DRAG EFFECT IN LIQUIDS

A new method based on a micromechanical sensor has been developed for the investigation of viscosity shear waves in liquids. A number of New tonian liquids having various molecular properties were tested with th e help of a miniaturized sensor oscillating in a liquid. A good experi mental confirmation of theoretical predictions was obtained for relati vely high viscosities eta. On the contrary, a significant discrepancy between the hydrodynamic limit for eta --> 0, i.e. the ''ideal liquid' ' limit, and the experimental data was observed. In addition, the data shows a discontinuity for different types of liquid molecules of vari able polarity.