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  1. 060 工学部
  2. 0601 学術論文

A stress tensor discontinuity-based immersed boundary-lattice Boltzmann method

http://hdl.handle.net/10091/00022523
http://hdl.handle.net/10091/00022523
9e272a0e-757d-4a7e-87f0-bb996931f63d
名前 / ファイル ライセンス アクション
16K18012_02.pdf 16K18012_02.pdf (934.8 kB)
Item type 学術雑誌論文 / Journal Article(1)
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

WEKO 110281

Suzuki, Kosuke

Search repository
Yoshino, Masato

× Yoshino, Masato

WEKO 110282

Yoshino, Masato

Search repository
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
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
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