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首页> 外文期刊>International Journal of Heat and Mass Transfer >Hindrance of thermomagnetic convection by the magnetoviscous effect
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Hindrance of thermomagnetic convection by the magnetoviscous effect

机译：磁粘性效应对热磁对流的阻碍

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摘要

The material and flow properties of magnetic fluids - so called ferrofluids - can be significantly influenced by magnetic fields. Two of the most prominent phenomena are the thermomagnetic convection and the magnetoviscous effect. To date, these magnetic field induced effects have always been studied separately, although they can affect each other under certain conditions. With the help of magnetic fields it is possible to induce a convective heat flow in ferrofluids. In earlier studies it is assumed for that case that the classical material properties are constant. However the magnetoviscous effect describes an increase in viscosity under magnetic influence, which occurs in ferrofluids with a certain contingent of large particles. In this paper, experimental results concerning the influence of the magnetoviscous effect on thermomagnetic convection are shown and discussed. Ferrofluids with and without significant magnetoviscous effect have been investigated.
机译：磁性流体（所谓的铁磁流体）的材料和流动特性会受到磁场的显着影响。最突出的两个现象是热磁对流和磁粘性效应。迄今为止，尽管它们在某些条件下会相互影响，但始终会单独研究这些磁场感应的影响。借助于磁场，可以在铁磁流体中引起对流热流。在较早的研究中，假定那种情况下经典材料特性是恒定的。然而，磁粘性效应描述了在磁影响下粘度的增加，这在具有一定大粒子群的铁磁流体中发生。本文展示并讨论了有关磁粘性效应对热磁对流的影响的实验结果。已经研究了具有和没有显着磁粘性效应的铁磁流体。

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