View in EDS PDF Full Text

A conformal symplectic multi-resolution time-domain method with ADE-PML.

Saved in:
Bibliographic Details
Title: A conformal symplectic multi-resolution time-domain method with ADE-PML.
Authors: Wu, Guanghua1,2 (AUTHOR), Liu, Yawen3 (AUTHOR) liuyawen1111@163.com, Zhang, Bo3 (AUTHOR)
Source: International Journal of Applied Electromagnetics & Mechanics. 2021, Vol. 66 Issue 4, p635-648. 14p.
Subjects: Multiresolution time-domain method, Radar cross sections, Electromagnetic pulses, Permittivity, Algorithms, Finite difference time domain method
Abstract: In this paper, the conformal finite-difference time-domain (CFDTD) technique and the concept of effective dielectric constant are applied to symplectic multi-resolution time-domain (SMRTD) algorithm based on Daubechies scaling functions, resulting in a conformal SMRTD (C-SMRTD) method. Moreover, a novel implementation of perfect matched layer with auxiliary differential equation (ADE-PML) is presented for the SMRTD method. Numerical results of the radar cross section (RCS) of a dielectric sphere verify the effectiveness of the C-SMRTD method, which shows good agreement with the results derived by analytical methods. It is also shown that the accuracy of the C-SMRTD method has been significantly improved compared with the MRTD method with step approximation, and the proposed method has an advantage over CFDTD at saving the CPU time and memory. Furthermore, a vault-top tunnel model is established with the proposed method, and the characteristic of the field cross-section distribution of the electromagnetic pulse (EMP) propagation in the tunnel model is also presented and discussed. [ABSTRACT FROM AUTHOR]
Copyright of International Journal of Applied Electromagnetics & Mechanics is the property of Sage Publications Inc. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
FullText Links:
  – Type: pdflink
Text:
  Availability: 0
Header DbId: egs
DbLabel: Engineering Source
An: 151973973
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
IllustrationInfo
Items – Name: Title
  Label: Title
  Group: Ti
  Data: A conformal symplectic multi-resolution time-domain method with ADE-PML.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Wu%2C+Guanghua%22">Wu, Guanghua</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Liu%2C+Yawen%22">Liu, Yawen</searchLink><relatesTo>3</relatesTo> (AUTHOR)<i> liuyawen1111@163.com</i><br /><searchLink fieldCode="AR" term="%22Zhang%2C+Bo%22">Zhang, Bo</searchLink><relatesTo>3</relatesTo> (AUTHOR)
– Name: TitleSource
  Label: Source
  Group: Src
  Data: <searchLink fieldCode="JN" term="%22International+Journal+of+Applied+Electromagnetics+%26+Mechanics%22">International Journal of Applied Electromagnetics & Mechanics</searchLink>. 2021, Vol. 66 Issue 4, p635-648. 14p.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Multiresolution+time-domain+method%22">Multiresolution time-domain method</searchLink><br /><searchLink fieldCode="DE" term="%22Radar+cross+sections%22">Radar cross sections</searchLink><br /><searchLink fieldCode="DE" term="%22Electromagnetic+pulses%22">Electromagnetic pulses</searchLink><br /><searchLink fieldCode="DE" term="%22Permittivity%22">Permittivity</searchLink><br /><searchLink fieldCode="DE" term="%22Algorithms%22">Algorithms</searchLink><br /><searchLink fieldCode="DE" term="%22Finite+difference+time+domain+method%22">Finite difference time domain method</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: In this paper, the conformal finite-difference time-domain (CFDTD) technique and the concept of effective dielectric constant are applied to symplectic multi-resolution time-domain (SMRTD) algorithm based on Daubechies scaling functions, resulting in a conformal SMRTD (C-SMRTD) method. Moreover, a novel implementation of perfect matched layer with auxiliary differential equation (ADE-PML) is presented for the SMRTD method. Numerical results of the radar cross section (RCS) of a dielectric sphere verify the effectiveness of the C-SMRTD method, which shows good agreement with the results derived by analytical methods. It is also shown that the accuracy of the C-SMRTD method has been significantly improved compared with the MRTD method with step approximation, and the proposed method has an advantage over CFDTD at saving the CPU time and memory. Furthermore, a vault-top tunnel model is established with the proposed method, and the characteristic of the field cross-section distribution of the electromagnetic pulse (EMP) propagation in the tunnel model is also presented and discussed. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of International Journal of Applied Electromagnetics & Mechanics is the property of Sage Publications Inc. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=151973973
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.3233/JAE-201597
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 14
        StartPage: 635
    Subjects:
      – SubjectFull: Multiresolution time-domain method
        Type: general
      – SubjectFull: Radar cross sections
        Type: general
      – SubjectFull: Electromagnetic pulses
        Type: general
      – SubjectFull: Permittivity
        Type: general
      – SubjectFull: Algorithms
        Type: general
      – SubjectFull: Finite difference time domain method
        Type: general
    Titles:
      – TitleFull: A conformal symplectic multi-resolution time-domain method with ADE-PML.
        Type: main
  BibRelationships:
    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Wu, Guanghua
      – PersonEntity:
          Name:
            NameFull: Liu, Yawen
      – PersonEntity:
          Name:
            NameFull: Zhang, Bo
    IsPartOfRelationships:
      – BibEntity:
          Dates:
            – D: 01
              M: 08
              Text: 2021
              Type: published
              Y: 2021
          Identifiers:
            – Type: issn-print
              Value: 13835416
          Numbering:
            – Type: volume
              Value: 66
            – Type: issue
              Value: 4
          Titles:
            – TitleFull: International Journal of Applied Electromagnetics & Mechanics
              Type: main
ResultId 1