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首页> 外文期刊>JSME International Journal. Series B, Fluids and Thermal Engineering >Flow of a Magnetic Fluid between Concentric Annuli (Rheological Property of Water-Based Magnetic Fluid)
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Flow of a Magnetic Fluid between Concentric Annuli (Rheological Property of Water-Based Magnetic Fluid)

机译：同心圆环之间的磁性流体流动（水基磁性流体的流变特性）

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摘要

We experimentally studied shear flow of a water-based magnetic fluid between concentric annuli. The experiment was carried out by changing the angular velocity of the outer cylinder, and the moment acting on the inner cylinder was measured. Experimental results were discussed in the following three ways. At first the magnetic fluid was treated as a Newtonian fluid, and a small difference in the flow curves was found. Next the power-law fluid theory was applied in order to explain these differences. Finally we examined this flow problem using the micropolar theory, which gives the theoretical relation between the moment acting on the inner cylinder and the angular velocity of the outer one. We measured the coefficient which denoted the micropolar effect, and showed the influence of the substructure on the fluid.
机译：我们通过实验研究了同心环之间的水基磁性流体的剪切流。通过改变外圆柱的角速度进行实验，并测量作用在内圆柱上的力矩。通过以下三种方式讨论了实验结果。起初，磁性流体被视为牛顿流体，并且发现流动曲线之间的差异很小。接下来，使用幂律流体理论来解释这些差异。最后，我们使用微极理论研究了这个流动问题，该理论给出了作用在内圆柱上的力矩与外圆柱的角速度之间的理论关系。我们测量了表示微极性效应的系数，并显示了子结构对流体的影响。

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