電気粘性流体の流体力学的特性に関する基礎的研究

概要

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Up to now there has not been any universally accepted model that describes the basic char acteristics of electrorheological (ER) fluid. In order to find a model applicable to the prediction of rheological properties of ER fluids, experimental studies of laminar channel flow are performed for two types of ER fluids. The experimental setup is designed to provide reasonable estimates of ER fluid response to steady electric fields. Obtained data are adequately modeled using a well-established constitutive equation of Bingham plastic fluids, which is thought to be one of the most likely candidates for predicting the behavior of ER fluids. Calculations of frictional factors as functions of the proposed apparent Reynolds number are also found to be possible using the measured data. In the experiment, both the apparent viscosity and the yield stress are found to be highly dependent on electric field intensities. In addition, the analysis presented in this study predicts, with high accuracy, the dependence of the stress response in steady shear flows on electric field intensities.
一般社団法人日本機械学会の論文
1997-09-25