流动液态钠中的湍流抗磁性
Turbulent Diamagnetism in Flowing Liquid Sodium
摘要：
欧姆定律的本质是检查在湍流的液体钠。向流动的钠施加磁场，并测量产生的磁场。在相同比例的水模型实验中，还测量了钠的平均速度场。这两个场用于确定欧姆定律中的项，表明存在由湍流电动势驱动的电流。这些电流导致抗磁效应，产生与实验的主导场相反的磁场。波动驱动的磁场的大小与钠的平均流量引起的磁场的大小相当。
英文摘要：
The nature of Ohm's law is examined in a turbulent flow of liquid sodium. A magnetic field is applied to the flowing sodium, and the resulting magnetic field is measured. The mean velocity field of the sodium is also measured in an identical-scale water model of the experiment. These two fields are used to determine the terms in Ohm's law, indicating the presence of currents driven by a turbulent electromotive force. These currents result in a diamagnetic effect, generating magnetic field in opposition to the dominant fields of the experiment. The magnitude of the fluctuation-driven magnetic field is comparable to that of the field induced by the sodium's mean flow.
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