대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)

대한전기학회 (The Korean Institute of Electrical Engineers)
권호 표지

A 전기적인 대구조의 마이크로파 가열의 수치해석 모델링

A Numerical Algorithm for Modeling Microwave Heating Effects in Electrically Large Structures

  • ;
  • 이하영 (중앙대학교 전자전기공학부) ;
  • 김형석 (중앙대학교 전자전기공학부)
  • Braunstein, Jeffrey (Dept. of Electrical and Electronic Eng. Chung Ang University) ;
  • Lee, Ha-Young (Dept. of Electrical and Electronic Eng. Chung Ang University) ;
  • Kim, Hyeong-Seok (Dept. of Electrical and Electronic Eng. Chung Ang University)
  • 발행 : 2005.07.18
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초록

In this paper, an iterative method to model the electromagnetic heating of electrically large lossy dielectrics is presented. Frequency domain finite element (FEM) solutions of the wave equation are determined for the lossy inhomogeneous dielectric as the material properties are change with temperature and time. The power absorbed from microwave losses is applied to a finite element time domain (FETD) calculation of the heat diffusion equation. Time steps appropriate for updating the piecewise material properties in the wave equation and the time stepping of the heat equation are presented. The effects of preheating and source frequency are investigated.

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