Affiliations: [a] SIMaP/EPM Laboratory, Grenoble Institute of Technology, Grenoble, France | [b] EPM_NM Laboratory, Politehnica University of Bucarest, Bucarest, Romania | [c] CEA/DEN/CAD/DTN/STPA/LCIT, Cadarache, France | Leibniz University of Hannover, Hannover, Germany | University of Pavia, Pavia, Italy | University of Padua, Padua, Italy
Correspondence:
[*]
Corresponding author: Y. Fautrelle, SIMaP/EPM Laboratory, Grenoble Institute of Technology, Grenoble, France. E-mail:
[email protected]
Abstract: The paper studies specific pumping characteristics of the Annular
Linear Induction Pumps (ALIP) with travelling field for liquid sodium. The
present work is focused on the analysis of very large electromagnetic pumps
able to provide high flow rates. The magnetic Reynolds number is quite large,
therefore, it is necessary to take into account the full magnetohydrodynamic
interaction between the electromagnetic field and the liquid metal flow inside
pump channel. We couple the electromagnetic aspects with the hydrodynamic ones
by means of two commercial softwares. The geometry considered here is 2D
axisymmetric. It is found that in such induction pumps the effect of convection
is very important. Two main effects have been put forth. Firstly, due to the
magnetic entrainment significant end effects are observed for large velocities.
This leads to the existence of regions where the axial force is negative. Secondly,
a Hartmann effect occurs near the walls. The electric current and the corresponding
forces are confined near the wall in Hartmann layers. Global stability of e.m. pump is also analysed.
