大学院博士課程学生のGuilherme Hitoshi Kanekoらの研究成果が欧文誌 Applied Physics A に掲載されました。
Alisson Cocci de Souza, William Imamura, Guilherme Hitoshi Kaneko, Nadège Bouchonneau, José Ângelo Peixoto da Costa, Gustavo Novaes Pires Leite, Alvaro Antonio Villa Ochoa, A parametric and comparative study of a permanent magnet structure, Applied Physics A, Vol.130, article number 200, (2024).
- Abstract: Permanent magnets remain the primary source of magnetic field in magnetic refrigerators and thermomagnetic motors, generally being evaluated by the parameter, which is applicable to a magnetic field source used in a magnetic refrigeration system. The main objective of this work is to perform a parametric and comparative analysis of a C-shaped and double C-shaped permanent magnet based on a common parameter to any arrangement of magnets, namely the figure of merit . The analysis was conducted through computational modeling and simulation with COMSOL Multiphysics® software. Different soft magnetic materials were used in the simulations and the best-performing material was used in the magnetic circuit of the C-shaped permanent magnet to evaluate the magnetic force acting on a set of gadolinium plates. It was observed that the soft magnetic material has a significant impact on . No significant impact on was observed regarding to the number of gaps as long as more magnetized blocks are employed in the arrangement. Consequently, a greater gap accompanied by a lower magnetic flux density has the potential to result in an increased magnetostatic force density.
- DOI: https://doi.org/10.1007/s00339-024-07361-6