The Study on Shear Thinning Behavior of the Magnetorheological Fluid Under High Velocity Flow

As a kind of smart materials, the magnetorheological fluid (MRF) has a promising application for its excellent properties. In this paper, the shear thinning of the magnetorheological fluid (MRF) is analyzed from two aspects, firstly, the relation between the viscosity of MRF and the pressure difference between the inlet and the outlet of the tube is obtained based on the HB model; and then, the shear mechanism of shear thinning is analyzed from microcosmic viewpoint, by which the model of the shear thinning is established. What’s more, a effective method for calculating the MRF viscosity is proposed based on the hydrodynamics. The research result is verified by the experiments.