Instruments and Systems: Monitoring, Control, and Diagnostics Annotation << Back Non-stationary method for determining the thermal properties of liquid polymers under shear flow PETRASHEVA M.A. DIVIN A.G. Developed a device and method for determining the non-stationary dependent thermophysical properties of non-Newtonian liquids on the shear rate. The measuring device consists of two coaxial cylinders between which the sample liquid. Measurement of thermal conductivity and thermal diffusivity proposed to carry out, after the measuring device is established stationary temperature field with a heat source action by viscous friction energy dissipation in the fluid stream. The calculated dependence, developed the software and test setup. Calibration experiments were carried out with ethanol. Unlike existing analogues, the measuring device provides a measure for a short time by the introduction of protective heater. The correctness of the measurement method is proved by experiment and by numerical calculations in ELCUT. Keywords: non-stationary method, thermal characteristics, non-Newtonian fluids, shear flow, the measuring device. Contacts: E-mail: mariya-che1@yandex.ru Pp. 66-69.