Acta mathematica scientia,Series A ›› 2022, Vol. 42 ›› Issue (4): 1238-1255.

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Fully Discrete Finite Element Scheme for a Nonlinear Induction Heating Problem

Yuan Huang1,Yue Zhi3,Tong Kang1,2,Ran Wang1,2,*(),Hong Zhang4   

  1. 1 School of Data Science and Intelligent Media, Communication University of China, Beijing 100024
    2 Key Laboratory of Computational Geodynamics, University of Chinese Academy of Sciences, Beijing 100049
    3 Tongzhou Branch of Beijing Yucai School, Beijing 101101
    4 Chaoyang Chuiyangliu Branch of Beijing Huiwen Middle School, Beijing 100021
  • Received:2021-03-30 Online:2022-08-26 Published:2022-08-08
  • Contact: Ran Wang E-mail:wangr@ucas.ac.cn
  • Supported by:
    the National Key Research and Development Program of China(2020YFA0713401);the National Science Foundation of China(U2039207);the National Science Foundation of China(42074108);the National Science Foundation of China(41904067);the Fundamental Research Funds for the Central Universities

Abstract:

It studies an induction heating model described by Maxwell's equations coupled with a heat equation. In the induction heating model, it assumes a nonlinear relation between the magnetic field and the magnetic induction field, and the electric conductivity is temperature dependent. It presents a fully discrete H-based finite element scheme in time and space and discusses its solvability. Moreover, it proves the fully discrete solution converges to a weak solution of the continuous problem. Finally, theoretical results are supported by some numerical experiments.

Key words: Induction heating, Maxwell's equations, Nonlinear, Finite elements, Convergence

CLC Number: 

  • O241.82
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