Moving Mesh FE/BE Hybrid Simulation of Electromagnetic Field Evolution for Railgun

Numerical simulation of a railgun always requires a huge number of mesh points in order to depict the entire rail and armature, due to its large rail length. Under such conditions, the traditional A-Φ method usually becomes very time-consuming in solving the electromagnetic field evolution. In this...

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Bibliographic Details
Published inIEEE transactions on plasma science Vol. 44; no. 8; pp. 1424 - 1428
Main Authors Wang, Gang-Hua, Xie, Long, He, Yong, Song, Sheng-Yi, Gao, Jun-Jie
Format Journal Article
LanguageEnglish
Published New York IEEE 01.08.2016
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Conductors
Electromagnetic (EM) system
Electromagnetism
Finite element analysis
finite-element (FE)/boundary-element (BE) hybrid scheme
Hybridization
Magnetic domains
Magnetomechanical effects
Mathematical model
moving mesh method
railgun
Railguns
Rails
Simulation
Sparse matrices
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Summary:Numerical simulation of a railgun always requires a huge number of mesh points in order to depict the entire rail and armature, due to its large rail length. Under such conditions, the traditional A-Φ method usually becomes very time-consuming in solving the electromagnetic field evolution. In this paper, a moving mesh finite-element/boundary-element hybrid scheme is proposed, utilizing the shift invariant properties of the field distribution along the rail. The electric and magnetic fields are directly solved in the conductor domain. Simulation results demonstrate the good performance of this scheme.
ISSN:0093-3813
1939-9375
DOI:10.1109/TPS.2016.2584981