電極を内壁に有する円管を流れる混合液晶に電場が及ぼす影響

概要

論文の詳細を見る
Two types of the electrode are designed to control the pressure and the flow rate of the ER (Erectro-rheological) fluids. The shape of the electrode is a circular pipe and some parts of the inner surface of the pipe are the electrode. A liquid crystal mixture is selected for the homogeneous ER fluids and the pressure drop of the circular pipe electrode is measured for a constant flow rate. On the other hands, numerical analysis of the electric fields in the circular pipe electrode is conducted. The relations between the flow rate and the pressure are obtained theoretically for various electric field intensities, which almost agree with experimental results. The distribution of the viscosity of the liquid crystal mixture should be considered to obtain high accuracy when the flow analysis is conducted for high voltages. The ER effect of two electrodes is discussed from the distributions of the electric field intensity.