3D modeling of forces between magnet and HTS in a levitation system using new approach of the control volume method based on an unstructured grid

Lotfi Alloui (1) , Frédéric Bouillault (1) , Laurent Bernard (1) , Jean Lévêque , Souri Mimoune

1 LGEP - Laboratoire de génie électrique de Paris

In this paper we present new 3D numerical model to calculate the vertical and the guidance forces in high temperature superconductors taking into account the influence of the flux creep phenomena. In the suggested numerical model, we adopt a new approach of the control volume method. This approach is based on the use of an unstructured grid which can be used to model more complex geometries. A comparison of the control volume method results with experiments verifies the validity of this approach and the proposed numerical model. Based on this model, the levitation force's relaxation at different temperatures was also studied.

Lotfi Alloui, Frédéric Bouillault, Laurent Bernard, Jean Lévêque, Souri Mimoune. 3D modeling of forces between magnet and HTS in a levitation system using new approach of the control volume method based on an unstructured grid. Physica C: Superconductivity and its Applications, 2012, 475, pp.32-37. ⟨10.1016/j.physc.2012.01.012⟩. ⟨hal-00779075⟩