Ultrasound Doppler flow measurements in a liquid metal column under the influence of a strong axial electric current


Ultrasound Doppler flow measurements in a liquid metal column under the influence of a strong axial electric current

Starace, M.; Weber, N.; Seilmayer, M.; Kasprzyk, C.; Weier, T.; Stefani, F.; Eckert, S.

Magnetohydrodynamic instabilities can constitute a serious hazard to the functionality of liquid metal batteries. Here we consider the Tayler instability, which appears when the electric current, passing through a conducting fluid, reaches a critical value. The experiment discussed in this article involves a column of a eutectic GaInSn alloy, along whose axis an electric current passes. Ultrasound transducers encased in a copper electrode bounding the top of the column were used to obtain the vertical component of fluid flow, once a noise suppression system had been devised. The data thus retrieved will be discussed here.

  • Magnetohydrodynamics 51(2015)2, 249-256
    ISSN: 0024-998X

Permalink: https://www.hzdr.de/publications/Publ-22330
Publ.-Id: 22330