Simulation of Electromagnetic Waves in Plasma by Subdomain-Level Nonconformal DGTD Method

Qi Chang; Yunpeng Ma; Ji Liu; Jinzu Ji

doi:10.1109/TPS.2022.3214215

Simulation of Electromagnetic Waves in Plasma by Subdomain-Level Nonconformal DGTD Method

Qi Chang
, Yunpeng Ma
, Ji Liu
, Jinzu Ji^*

^*Corresponding author for this work

School of Aeronautic Science and Engineering

Beihang University

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

The subdomain-level discontinuous Galerkin time-domain (SL-DGTD) method in a 3-D case is proposed in this article to simulate electromagnetic waves in plasma. An auxiliary differential equation (ADE) technique is employed to manipulate the dispersive characteristic of plasma. A hybrid nonconformal domain decomposition method is used to improve computational efficiency and modeling accuracy. The fourth-order explicit Runge-Kutta integration scheme is implemented to update the fields in each time step. Finally, the proposed algorithm is validated by studying the cutoff frequency of plasma, the transmission coefficients of a plasma slab, and the scattering characteristics of a plasma-coated sphere.

Original language	English
Pages (from-to)	4775-4781
Number of pages	7
Journal	IEEE Transactions on Plasma Science
Volume	50
Issue number	11
DOIs	https://doi.org/10.1109/TPS.2022.3214215
State	Published - 1 Nov 2022

Keywords

Auxiliary differential equation (ADE)
nonconformal
plasma
subdomain-level discontinuous Galerkin time-domain (SL-DGTD) method

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10.1109/TPS.2022.3214215

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title = "Simulation of Electromagnetic Waves in Plasma by Subdomain-Level Nonconformal DGTD Method",

abstract = "The subdomain-level discontinuous Galerkin time-domain (SL-DGTD) method in a 3-D case is proposed in this article to simulate electromagnetic waves in plasma. An auxiliary differential equation (ADE) technique is employed to manipulate the dispersive characteristic of plasma. A hybrid nonconformal domain decomposition method is used to improve computational efficiency and modeling accuracy. The fourth-order explicit Runge-Kutta integration scheme is implemented to update the fields in each time step. Finally, the proposed algorithm is validated by studying the cutoff frequency of plasma, the transmission coefficients of a plasma slab, and the scattering characteristics of a plasma-coated sphere.",

keywords = "Auxiliary differential equation (ADE), nonconformal, plasma, subdomain-level discontinuous Galerkin time-domain (SL-DGTD) method",

author = "Qi Chang and Yunpeng Ma and Ji Liu and Jinzu Ji",

note = "Publisher Copyright: {\textcopyright} 1973-2012 IEEE.",

year = "2022",

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doi = "10.1109/TPS.2022.3214215",

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TY - JOUR

T1 - Simulation of Electromagnetic Waves in Plasma by Subdomain-Level Nonconformal DGTD Method

AU - Chang, Qi

AU - Ma, Yunpeng

AU - Liu, Ji

AU - Ji, Jinzu

PY - 2022/11/1

Y1 - 2022/11/1

N2 - The subdomain-level discontinuous Galerkin time-domain (SL-DGTD) method in a 3-D case is proposed in this article to simulate electromagnetic waves in plasma. An auxiliary differential equation (ADE) technique is employed to manipulate the dispersive characteristic of plasma. A hybrid nonconformal domain decomposition method is used to improve computational efficiency and modeling accuracy. The fourth-order explicit Runge-Kutta integration scheme is implemented to update the fields in each time step. Finally, the proposed algorithm is validated by studying the cutoff frequency of plasma, the transmission coefficients of a plasma slab, and the scattering characteristics of a plasma-coated sphere.

AB - The subdomain-level discontinuous Galerkin time-domain (SL-DGTD) method in a 3-D case is proposed in this article to simulate electromagnetic waves in plasma. An auxiliary differential equation (ADE) technique is employed to manipulate the dispersive characteristic of plasma. A hybrid nonconformal domain decomposition method is used to improve computational efficiency and modeling accuracy. The fourth-order explicit Runge-Kutta integration scheme is implemented to update the fields in each time step. Finally, the proposed algorithm is validated by studying the cutoff frequency of plasma, the transmission coefficients of a plasma slab, and the scattering characteristics of a plasma-coated sphere.

KW - Auxiliary differential equation (ADE)

KW - nonconformal

KW - plasma

KW - subdomain-level discontinuous Galerkin time-domain (SL-DGTD) method

UR - https://www.scopus.com/pages/publications/85141468754

U2 - 10.1109/TPS.2022.3214215

DO - 10.1109/TPS.2022.3214215

M3 - 文章

AN - SCOPUS:85141468754

SN - 0093-3813

VL - 50

SP - 4775

EP - 4781

JO - IEEE Transactions on Plasma Science

JF - IEEE Transactions on Plasma Science

IS - 11

ER -

Simulation of Electromagnetic Waves in Plasma by Subdomain-Level Nonconformal DGTD Method

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Keywords

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