中国物理B ›› 2017, Vol. 26 ›› Issue (10): 104101-104101.doi: 10.1088/1674-1056/26/10/104101

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇    下一篇

A leap-frog discontinuous Galerkin time-domain method of analyzing electromagnetic scattering problems

Xue-Wu Cui(崔学武), Feng Yang(杨峰), Long-Jian Zhou(周龙建), Min Gao(高敏), Fei Yan(闫飞), Zhi-Peng Liang(梁志鹏)   

  1. School of Electronic Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China
  • 收稿日期:2017-03-17 修回日期:2017-04-20 出版日期:2017-10-05 发布日期:2017-10-05
  • 通讯作者: Feng Yang E-mail:yangf@uestc.edu.cn
  • 基金资助:

    Project supported by the National Natural Science Foundation of China (Grant Nos. 61301056 and 11176007), the Sichuan Provincial Science and Technology Support Program, China (Grant No. 2013HH0047), the Fok Ying Tung Education Foundation, China (Grant No. 141062), and the "111" Project, China (Grant No. B07046).

A leap-frog discontinuous Galerkin time-domain method of analyzing electromagnetic scattering problems

Xue-Wu Cui(崔学武), Feng Yang(杨峰), Long-Jian Zhou(周龙建), Min Gao(高敏), Fei Yan(闫飞), Zhi-Peng Liang(梁志鹏)   

  1. School of Electronic Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China
  • Received:2017-03-17 Revised:2017-04-20 Online:2017-10-05 Published:2017-10-05
  • Contact: Feng Yang E-mail:yangf@uestc.edu.cn
  • Supported by:

    Project supported by the National Natural Science Foundation of China (Grant Nos. 61301056 and 11176007), the Sichuan Provincial Science and Technology Support Program, China (Grant No. 2013HH0047), the Fok Ying Tung Education Foundation, China (Grant No. 141062), and the "111" Project, China (Grant No. B07046).

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摘要：

Several major challenges need to be faced for efficient transient multiscale electromagnetic simulations, such as flexible and robust geometric modeling schemes, efficient and stable time-stepping algorithms, etc. Fortunately, because of the versatile choices of spatial discretization and temporal integration, a discontinuous Galerkin time-domain (DGTD) method can be a very promising method of solving transient multiscale electromagnetic problems. In this paper, we present the application of a leap-frog DGTD method to the analyzing of the multiscale electromagnetic scattering problems. The uniaxial perfect matching layer (UPML) truncation of the computational domain is discussed and formulated in the leap-frog DGTD context. Numerical validations are performed in the challenging test cases demonstrating the accuracy and effectiveness of the method in solving transient multiscale electromagnetic problems compared with those of other numerical methods.

关键词: discontinuous Galerkin, time-domain simulation, radar cross section

Abstract:

Several major challenges need to be faced for efficient transient multiscale electromagnetic simulations, such as flexible and robust geometric modeling schemes, efficient and stable time-stepping algorithms, etc. Fortunately, because of the versatile choices of spatial discretization and temporal integration, a discontinuous Galerkin time-domain (DGTD) method can be a very promising method of solving transient multiscale electromagnetic problems. In this paper, we present the application of a leap-frog DGTD method to the analyzing of the multiscale electromagnetic scattering problems. The uniaxial perfect matching layer (UPML) truncation of the computational domain is discussed and formulated in the leap-frog DGTD context. Numerical validations are performed in the challenging test cases demonstrating the accuracy and effectiveness of the method in solving transient multiscale electromagnetic problems compared with those of other numerical methods.

Key words: discontinuous Galerkin, time-domain simulation, radar cross section

中图分类号:  (Electromagnetic wave propagation; radiowave propagation)

  • 41.20.Jb
02.60.Cb (Numerical simulation; solution of equations) 42.68.Mj (Scattering, polarization)