溶融ナトリウムを想定した誘導型電磁ポンプの数値解析

抄録

Induction-type electromagnetic pump was numerically studied for annular tubes. The conducting fluid (molten sodium) as a coolant is assumed to be incompressible and Newtonian fluid. The present study focuses on how the flow is driven by the applied moving magnetic field but it does not focus on the heat transfer. The effect of induced magnetic field, which may be related to the flow instability of the induction pump, is taken into account by solving the induction equations using the cross-helicity method. The computations include various dimensionless parameters such as Reynolds number based on the phase velocity, Hartmann number, magnetic Reynolds number and so on. Several demonstrations changing the radius ratio and wavenumber were numerically evaluated.