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  1. 060 工学部
  2. 10 学術雑誌論文
  3. 10 査読済論文
  1. 0 資料タイプ別
  2. 01 学術雑誌論文

スカラー拡散を伴う円形噴流のラージ・エディ・シミュレーション

http://hdl.handle.net/10191/5769
http://hdl.handle.net/10191/5769
fa96b87a-12ce-4432-b862-7b86365dba85
名前 / ファイル ライセンス アクション
9_0067.pdf 9_0067.pdf (607.7 kB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2008-04-08
タイトル
タイトル スカラー拡散を伴う円形噴流のラージ・エディ・シミュレーション
タイトル
言語 en
タイトル スカラー拡散を伴う円形噴流のラージ・エディ・シミュレーション
言語
言語 jpn
キーワード
主題Scheme Other
主題 Round Jet
キーワード
主題Scheme Other
主題 Scalar Transport
キーワード
主題Scheme Other
主題 Large Eddy Simulation
キーワード
主題Scheme Other
主題 Modified Outflow Condition
資源タイプ
資源 http://purl.org/coar/resource_type/c_6501
タイプ journal article
その他のタイトル
その他のタイトル Large Eddy Simulation of Flow and Scalar Transport in a Round Jet
著者 須藤, 仁

× 須藤, 仁

WEKO 44796

須藤, 仁

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松原, 幸治

× 松原, 幸治

WEKO 44797

松原, 幸治

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小林, 睦夫

× 小林, 睦夫

WEKO 44798

小林, 睦夫

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金子, 嘉昭

× 金子, 嘉昭

WEKO 44799

金子, 嘉昭

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著者別名
識別子 44800
識別子Scheme WEKO
姓名 Suto, Hitoshi
著者別名
識別子 44801
識別子Scheme WEKO
姓名 Matsubara, Koji
著者別名
識別子 44802
識別子Scheme WEKO
姓名 Kobayashi, Mutsuo
著者別名
識別子 44803
識別子Scheme WEKO
姓名 Kaneko, Yoshiaki
抄録
内容記述タイプ Abstract
内容記述 Large eddy simulation (LES) was performed for a spatially developing round jet and its scalar transport at four steps of Reynolds number set between 1 200 and 1 000 000. Simulated domain, which extends 30 times nozzle diameter, includes initial, transitional and established stage of jet. Modified convection outflow condition was proposed in order to minimize effect of downstream boundary. Tested were two kinds of subgrid scale (SGS) models, Smagorinsky model (SM) and dynamic Smagorinsky model (DSM). In the former model parameters are kept at empirically deduced constants, while in the latter they are calculated using different levels of space filtering. Data analysis based on decay law of jet clearly presented performance of SGS models. Simulated results by SM and DSM compared favorably with existing measurements of jet and its scalar transport and however quantitative accuracy of DSM was better than SM at transitional stage of flow field. Computed parameters by DSM, coefficient for SGS stresses, C_R, and SGS eddy diffusivity ratio, Г_<SGS>, were not far from empirical constants of SM. Optimization of model coefficient was suggested in DSM so that coefficient C_R was nearly equal in established stage of jet but it reduced in low turbulence close to the jet nozzle.
書誌情報 日本機械学会論文集. B編
en : 日本機械学会論文集. B編

巻 69, 号 681, p. 1208-1215, 発行日 2003-05
出版者
出版者 日本機械学会
ISSN
収録物識別子タイプ ISSN
収録物識別子 03875016
書誌レコードID
収録物識別子タイプ NCID
収録物識別子 AN00187441
権利
権利情報 日本機械学会 / 本文データは学会の許諾に基づくCiNiiからの複製である
著者版フラグ
値 publisher
異版である
関連タイプ isVersionOf
識別子タイプ URI
関連識別子 http://ci.nii.ac.jp/naid/110002388093
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