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A fast time-domain boundary element method for three-dimensional electromagnetic scattering problems
http://hdl.handle.net/2237/0002007324
http://hdl.handle.net/2237/00020073243451d8ed-a4ec-4372-8370-26d532748e8d
名前 / ファイル | ライセンス | アクション |
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Item type | itemtype_ver1(1) | |||||||
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公開日 | 2023-09-14 | |||||||
タイトル | ||||||||
タイトル | A fast time-domain boundary element method for three-dimensional electromagnetic scattering problems | |||||||
言語 | en | |||||||
著者 |
Takahashi, Toru
× Takahashi, Toru
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アクセス権 | ||||||||
アクセス権 | embargoed access | |||||||
アクセス権URI | http://purl.org/coar/access_right/c_f1cf | |||||||
権利 | ||||||||
言語 | en | |||||||
権利情報 | © 2023. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ | |||||||
内容記述 | ||||||||
内容記述 | This paper proposes a fast time-domain boundary element method (TDBEM) to solve three-dimensional transient electromagnetic scattering problems regarding perfectly electric conductors in the classical marching-on-in-time manner. The algorithm of the fast TDBEM is a time-domain variant of the interpolation-based fast multipole method (IFMM), which is similar to the time-domain IFMM for acoustic scattering problems investigated in the author's previous studies. The principle of the present IFMM is to interpolate the kernel functions of the electric and magnetic field integral equations (EFIE and MFIE, respectively) so that every kernel function is expressed in a form of separation of variables in terms of both the spatial and temporal variables. Such an expression enables to construct a fast method to evaluate the scalar and vector potentials in the EFIE and MFIE with using so-called multipole-moments and local-coefficients associated with a space-time hierarchy. As opposed to [O(N2sNt)] of the conventional TDBEM, the computational complexity of the fast TDBEM is estimated as [O(N2sNt)], where and stand for the spatial and temporal degrees of freedom, respectively, and δ is typically 1/2 or 1/3. The numerical examples presented the advantages of the proposed fast TDBEM over the conventional TDBEM when solving large-scale problems. | |||||||
言語 | en | |||||||
内容記述タイプ | Abstract | |||||||
出版者 | ||||||||
言語 | en | |||||||
出版者 | Elsevier | |||||||
言語 | ||||||||
言語 | eng | |||||||
資源タイプ | ||||||||
資源タイプresource | http://purl.org/coar/resource_type/c_6501 | |||||||
タイプ | journal article | |||||||
出版タイプ | ||||||||
出版タイプ | AM | |||||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||||
関連情報 | ||||||||
関連タイプ | isVersionOf | |||||||
識別子タイプ | DOI | |||||||
関連識別子 | https://doi.org/10.1016/j.jcp.2023.112053 | |||||||
収録物識別子 | ||||||||
収録物識別子タイプ | PISSN | |||||||
収録物識別子 | 0021-9991 | |||||||
書誌情報 |
en : Journal of Computational Physics 巻 482, p. 112053, 発行日 2023-06-01 |
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ファイル公開日 | ||||||||
日付 | 2025-06-01 | |||||||
日付タイプ | Available |