A measurement method is introduced which can detect steady and unsteady flow in electrically conducting fluids. In this method, the flow region is subjected to an externally applied weak magnetic field B₀. The induced magnetic field b generated by fluid flow across the field lines of B₀ is used for the flow investigations. It can be measured outside the flow region with the advantage that neither electrical nor mechanical connections with the fluid are necessary. The results obtained by the experiment are confirmed by a time‐dependent three‐dimensional numerical simulation. It is indicated how fluid flow configurations could be deduced by an appropriate measurement of the induced field b.

中文翻译：

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利用磁流体动力学效应研究导电熔体中的流体流动

介绍了一种可以检测稳定和 不稳定流动 在导电 液体。 在这种方法中，流动区域受到外部施加的弱 磁场 B ₀。诱导磁场 b由流体流量B ₀的磁力线用于流动研究。可以在流动区域外进行测量，其优点是与传感器之间既无电连接也无机械连接体液是必要的。实验获得的结果通过时间相关的三维数值模拟得到了证实。表明如何流体流量可以通过适当测量感应场b来推导其构型。