電場が正弦波状に変動する場合の電気粘性流体の平行二平板電極間流路での流れ

概要

論文の詳細を見る
The frequency response of pressure drop of ER fluids between two parallel-plate electrodes to sine wave changes in the applied electric field is investigated at constant flow rates. The ER fluids used in the present study consist of cellulose suspended in silicone oil. Unipolar and bipolar wave electric fields, and constant ones are used. Amplitudes of the electric fields are 0.4 and 0.7kV/mm and DC component is 1.0kV/mm for unipolar electric fields. The frequency of the electric fields is varied from 0.1 to 1000Hz. The central values, the amplitudes and the phase angles of the pressure drop are measured. Dependence of the pressure drop on electrical excitation frequency is investigated. Furthermore, the microscopic behavior of ER suspension structure in two fixed electrodes is visualized for stationary ER fluids with a CCD camera under application of electric fields. The effect of electrical change on the pressure drop is explained from the results of flow visualization.
一般社団法人日本機械学会の論文
1997-04-25