Identification of the nonlinear viscous properties of fluids by the vibrational method

Effects occurring in an oscillatory viscosimeter upon its filling with nonlinear viscous fluids whose rheological properties are described by the Ostwald-Weyl model have been revealed. The possibilities of the vibrational method for identification of the rheological belonging of media to nonlinear viscous ones with a power rheological law and of their nonlinear properties in the regime of free damped and forced vibrations have been discussed. __________ Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 78, No. 5, pp. 70–77, September–October, 2005.