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  1. A500 情報学部/情報学研究科・情報文化学部・情報科学研究科
  2. A500a 雑誌掲載論文
  3. 学術雑誌

Shape optimization of flow field improving hydrodynamic stability

http://hdl.handle.net/2237/25704
http://hdl.handle.net/2237/25704
5de132f9-9d98-4ae9-ae6a-eb453b382d11
名前 / ファイル ライセンス アクション
JJIAM_Nakazawa.pdf JJIAM_Nakazawa.pdf (1.3 MB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2017-03-15
タイトル
タイトル Shape optimization of flow field improving hydrodynamic stability
言語 en
著者 Nakazawa, Takashi

× Nakazawa, Takashi

WEKO 69768

en Nakazawa, Takashi

Search repository
Azegami, Hideyuki

× Azegami, Hideyuki

WEKO 69769

en Azegami, Hideyuki

Search repository
アクセス権
アクセス権 open access
アクセス権URI http://purl.org/coar/access_right/c_abf2
権利
言語 en
権利情報 The final publication is available at Springer via http://doi.org/10.1007/s13160-015-0201-9
キーワード
主題Scheme Other
主題 Shape optimization
キーワード
主題Scheme Other
主題 Fluid dynamics
キーワード
主題Scheme Other
主題 Hydrodynamic stability
抄録
内容記述 This paper presents a solution of a shape optimization problem of a flow field for delaying transition from a laminar flow to a turbulent flow. Mapping from an initial domain to a new domain is chosen as the design variable. Main problems are defined by the stationary Navier–Stokes problem and an eigenvalue problem assuming a linear disturbance on the solution of the stationary Navier–Stokes problem. The maximum value of the real part of the eigenvalue is used as an objective cost function. The shape derivative of the cost function is defined as the Fréchet derivative of the cost function with respect to arbitrary variation of the design variable, which denotes the domain variation, and is evaluated using the Lagrange multiplier method. To obtain a numerical solution, we use an iterative algorithm based on the H1 gradient method using the finite element method. To confirm the validity of the solution, a numerical example for two-dimensional Poiseuille flow with a sudden expansion is presented. Results reveal that a critical Reynolds number increases by the iteration of reshaping.
言語 en
内容記述タイプ Abstract
出版者
言語 en
出版者 Springer
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
DOI
関連タイプ isVersionOf
識別子タイプ DOI
関連識別子 https://doi.org/10.1007/s13160-015-0201-9
ISSN
収録物識別子タイプ PISSN
収録物識別子 0916-7005
書誌情報 en : Japan Journal of Industrial and Applied Mathematics

巻 33, 号 1, p. 167-181, 発行日 2016-02
著者版フラグ
値 author
URI
識別子 http://doi.org/10.1007/s13160-015-0201-9
識別子タイプ DOI
URI
識別子 http://hdl.handle.net/2237/25704
識別子タイプ HDL
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