Couette流れにおけるアルミニウム粉末を含むサスペンションの電気粘性効果(流体工学,流体機械)

概要

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To determine the quantities affecting electroviscous effects, we investigated the change of the effects due to electric field, shear stress, volume concentration of powder, and kind of aluminum powder and turbine oil in the previous study. In this study we examined the change of the effects by using various kinds of liquid with different dielectric constants. The same results were obtained for the various kinds of liquid. That is, the electroviscous effects were controlled by a nondimensional parameter expressed as the ratio of force acting on a conductor per unit area in the electric field to shear stress when no electric field was applied. Furthermore, by adding terms of the apparent dielectric constant of suspension and volume concentration to the nondimensional parameter, almost all the experimental data points were rearranged to lie approximately on one straight line in a plot with the new nondimensional parameter as abscissa and the effect as ordinate.
一般社団法人日本機械学会の論文
1997-07-25