A Novel Method of Flow Curve Measurement for Magnetic Fluid Based on Plane Poiseuille Flow

Accurate measurement of the flow curves magnetic fluid under a uniform field has always been challenge. In this article, novel method is proposed to measure curve fluids based on plane Poiseuille flow. The measuring system was built and its performance compared with that commercial rheometer. Flow different zero-field viscosity were tested various strengths. This facilitates direct observation flowing behaviors stresses. By examining variation trend certain constant stress, more reliable determine dynamic yield stress used. measured by new larger than value obtained fitting, which from an engineering point view.