Open AccessCoupling calculation and analysis of three‐dimensional temperature and fluid field for high‐power high‐speed permanent magnet machine
Author(s) -
Wang Tianyu,
Zhang Yue,
Wen Fuqiang,
Gerada Chris,
Liu Guangwei,
Rui Dai,
Zerun Wang
Publication year - 2019
Publication title -
iet electric power applications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.815
H-Index - 97
eISSN - 1751-8679
pISSN - 1751-8660
DOI - 10.1049/iet-epa.2018.5725
Subject(s) - heat transfer , mechanics , coupling (piping) , magnet , finite volume method , computation , field (mathematics) , fluid dynamics , materials science , boundary value problem , computational fluid dynamics , mechanical engineering , physics , mathematics , mathematical analysis , engineering , algorithm , pure mathematics
In order to accurately estimate the temperature rise for high‐power high‐speed permanent magnet machines (HSPMMs), a novel temperature calculation method considering the non‐linear variation of material properties with temperature is proposed based on multi‐physics co‐simulation analysis. According to the theory of computational fluid dynamics and heat transfer, the computation model of fluid–solid–heat coupling heat transfer is established, and the coupled field is calculated using finite volume method with fundamental assumptions and corresponding boundary conditions. With the influences from temperature gradient and water flow rate considered, the heat transfer coefficients of water pipe surfaces are obtained by the application of the inverse iteration method. Thus, HSPMM temperature and fluid field can be simulated numerically by the finite volume methods, while the spatial temperature distributions for the machine main components are analysed in this study. The 1.12 MW, 18,000 rpm HSPMM is prototyped with experiments conducted on it, while the test data are then compared with the calculated results, which validate the correctness of the solution method of the coupled field.