Experimental and numerical analyses of the magnetic field spatial measurement inside an electromagnetic pump channel duct

International audienceThis article is a summary of a full paper that will be presented at the XInternational PAMIR International Conference - Fundamental and Applied MHD, to be heldfrom 20 – 24 June, in Cagliari, Italy.In the framework of the ASTRID R&D programme, it has been proposed to use anelectromagnetic (EM) induction pump in the secondary cooling system. This paper describesthe current status of the experimental and numerical analysis in progress to investigate liquidsodium flow instabilities in the PEMDYN loop with the objective of better managing the EMpump and preventing magnetohydrodynamic (MHD) instability. This paper discusses theanalysis of 3D measurements of the magnetic fields along a path inside the annular linearinduction pump (ALIP) channel measured with a Hall sensor. It also describes the numericalfinite-element models that have been built to gain a more in-depth understanding of theinterdependent MHD phenomena specific to EM pump operation. These measurements wereobtained before the operative condition so as to retrieve as much information as possible onthe EM field inside the channel pump without the fluid dynamic