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A stress tensor discontinuity-based immersed boundary-lattice Boltzmann method
http://hdl.handle.net/10091/00022523
http://hdl.handle.net/10091/000225239e272a0e-757d-4a7e-87f0-bb996931f63d
名前 / ファイル | ライセンス | アクション |
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2021-02-16 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | A stress tensor discontinuity-based immersed boundary-lattice Boltzmann method | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Immersed boundary method | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Lattice Boltzmann method | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Moving-boundary flow | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Stress tensor discontinuity | |||||
資源タイプ | ||||||
資源 | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | journal article | |||||
著者 |
Suzuki, Kosuke
× Suzuki, Kosuke× Yoshino, Masato |
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信州大学研究者総覧へのリンク | ||||||
氏名 | Suzuki, Kosuke | |||||
URL | https://soar-rd.shinshu-u.ac.jp/profile/ja.uayebUkh.html | |||||
信州大学研究者総覧へのリンク | ||||||
氏名 | Yoshino, Masato | |||||
URL | https://soar-rd.shinshu-u.ac.jp/profile/ja.ONkpbpkh.html | |||||
出版者 | ||||||
出版者 | PERGAMON-ELSEVIER SCIENCE LTD | |||||
引用 | ||||||
内容記述タイプ | Other | |||||
内容記述 | COMPUTERS & FLUIDS.172: 593-608(2018) | |||||
書誌情報 |
COMPUTERS & FLUIDS 巻 172, p. 593-608, 発行日 2018-08-30 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | We propose an immersed boundary-lattice Boltzmann method using the discontinuity of the stress tensor. In the immersed boundary method, the body force which is applied to enforce the no-slip boundary condition is equivalent to the discontinuity of the stress tensor across the boundary. In the proposed method, the boundary is expressed by Lagrangian points independently of the background lattice points, and the discontinuity of the stress tensor is calculated on these points from desired particle distribution functions which satisfy the no-slip boundary condition based on the bounce-back scheme. By using this method, we can obtain the force locally acting on the boundary from the stress tensor of one side of the fluids divided by the boundary, and there is no need to consider the internal mass effect in calculating the total force and torque acting on the boundary. To our best knowledge, the present method is the first one which enables us to calculate the stress tensor on the boundary in the class of the diffusive interface method. In order to validate the present method, we apply it to simulations of typical moving-boundary problems, i.e., a Taylor-Couette flow, an oscillating circular cylinder in a stationary fluid, the sedimentation of an elliptical cylinder, and the sedimentation of a sphere. As a result, the present method has the first-order spatial accuracy and has a good agreement with other numerical and experimental results. In addition, we discuss two problems of the present method, i.e., penetration and spurious oscillation of local force, and a possible remedy for them. (C) 2018 Elsevier Ltd. All rights reserved. | |||||
資源タイプ(コンテンツの種類) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Article | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0045-7930 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA00613559 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1016/j.compfluid.2018.03.027 | |||||
関連名称 | 10.1016/j.compfluid.2018.03.027 | |||||
権利 | ||||||
権利情報 | © 2018. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/. | |||||
出版タイプ | ||||||
出版タイプ | AM | |||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||
WoS | ||||||
表示名 | Web of Science | |||||
URL | http://gateway.isiknowledge.com/gateway/Gateway.cgi?&GWVersion=2&SrcAuth=ShinshuUniv&SrcApp=ShinshuUniv&DestLinkType=FullRecord&DestApp=WOS&KeyUT=000442067700044 |