回転振動法による粘度測定における端面およびすべりの影響

抄録

In order to determine the viscosity of liquid metals by the oscillating vessel method with high accuracy, an investigation was made on the corrections for the Roscoe’s absolute equation that connects the period and the logarithmic decrement of oscillations with the viscosity of liquid.
Corrections for the end effect were examined experimentally by the use of the cylindrical vessel of graphite. The values of the end correction for liquid metals such as Hg, Sn and Pb were obtained.
Corrections for the slipping effect were discussed on the basis of the corrected Roscoe’s equation which was previously proposed by the authors.
Furthermore, the relation between the correction factor ζ in the corrected Roscoe’s equation and the work of adhesion was also investigated experimentally.