| アイテムタイプ |
itemtype_ver1(1) |
| 公開日 |
2024-07-03 |
| タイトル |
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タイトル |
Eulerian finite volume method using Lagrangian markers with reference map for incompressible fluid–structure interaction problems |
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言語 |
en |
| 著者 |
Nishiguchi, Koji
Shimada, Tokimasa
Peco, Christian
Kondo, Keito
Okazawa, Shigenobu
Tsubokura, Makoto
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| アクセス権 |
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アクセス権 |
embargoed access |
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アクセス権URI |
http://purl.org/coar/access_right/c_f1cf |
| 権利 |
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権利情報 |
© 2024. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ |
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言語 |
en |
| 内容記述 |
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内容記述タイプ |
Abstract |
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内容記述 |
We propose a monolithic fluid–structure interaction (FSI) method that presents the advantages of both the reference map technique (RMT) and the Lagrangian Markers approach on a unified, cell-centered finite volume Eulerian framework. Full Eulerian methods that use a Cartesian mesh are attractive for FSI problems that require large-scale computing and involve complex geometries and large solid deformations. However, conventional full Eulerian methods use the velocity gradient to evaluate solid deformations, hence they suffer from numerical instability caused by the discontinuity of the velocity gradient near the interface. In this work, we develop a novel algorithm that interpolates and transfers a reference mapping information field between a collection of Lagrangian Markers and a Eulerian finite volume framework. As a result of integrating these approaches, our method is able to (1) evaluate solid deformations without computing the velocity gradient in the Eulerian framework thanks to RMT, and (2) remove the numerical dissipation of interfaces and internal variables caused by advection in the full Eulerian RMT, thanks to the use of the Lagrangian Markers to compute the constitutive equations. We illustrate with numerical examples that the proposed method preserves geometrical features and yields more accurate results for the deformation and energy than conventional Eulerian FSI method and the full Eulerian RMT. |
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言語 |
en |
| 出版者 |
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出版者 |
Elsevier |
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言語 |
en |
| 言語 |
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言語 |
eng |
| 資源タイプ |
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資源タイプresource |
http://purl.org/coar/resource_type/c_6501 |
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タイプ |
journal article |
| 出版タイプ |
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出版タイプ |
AM |
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出版タイプResource |
http://purl.org/coar/version/c_ab4af688f83e57aa |
| 関連情報 |
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関連タイプ |
isVersionOf |
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識別子タイプ |
DOI |
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関連識別子 |
https://doi.org/10.1016/j.compfluid.2024.106210 |
| 収録物識別子 |
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収録物識別子タイプ |
PISSN |
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収録物識別子 |
00457930 |
| 書誌情報 |
en : Computers & Fluids
巻 274,
p. 106210,
発行日 2024-04-30
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| ファイル公開日 |
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日付 |
2026-04-30 |
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日付タイプ |
Available |
BCM_RMT_Paper_computer_fluids.pdf (23.3 MB)
