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A Theoretical Analysis of Laminar and Turbulent Swirling Flows in Cylindrical Annuli
https://jaxa.repo.nii.ac.jp/records/44895
https://jaxa.repo.nii.ac.jp/records/44895f2671b2b-f99a-4e5c-b2c0-703df562182c
名前 / ファイル | ライセンス | アクション |
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naltr0640t.pdf (1.1 MB)
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Item type | テクニカルレポート / Technical Report(1) | |||||
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公開日 | 2015-03-26 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | A Theoretical Analysis of Laminar and Turbulent Swirling Flows in Cylindrical Annuli | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_18gh | |||||
資源タイプ | technical report | |||||
著者 |
山本, 孝正
× 山本, 孝正× YAMAMOTO, Atsumasa× MILLAR, D.A.J |
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著者所属 | ||||||
航空宇宙技術研究所原動機部 | ||||||
著者所属 | ||||||
カールトン大学 | ||||||
著者所属(英) | ||||||
en | ||||||
Aeroengine Division, National Aerospace Laboratory(NAL) | ||||||
著者所属(英) | ||||||
en | ||||||
Mechanical & Aeronautical Engineering, Carleton University | ||||||
出版者 | ||||||
出版者 | 航空宇宙技術研究所 | |||||
出版者(英) | ||||||
出版者 | National Aerospace Laboratory(NAL) | |||||
書誌情報 |
en : Technical Report of National Aerospace Laboratory TR-640T 巻 640T, p. 17, 発行日 1980-11 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | 二重円環内における層流及び乱流旋回流に関する数値計算の方法と結果について述べた。本報告はターボ機械等でみられる旋回流れの円周方向速度成分の下流での減衰の予測を主な目的としたものであり,この予測はターボ機械の設計や性能予測でよく用いられる非粘性の仮定を基礎とした計算方法では不可能なものである。計算の方法としては放物化したナビアトークス方程式に乱流モデルとしての乱流エネルギーとその散逸率に関する二輸送方程式を組合せて解く。計算結果は層流,乱流および旋回速度の有無の組合せの各場合について,他の解析解,数値解,現在入手出来る実験結果等と比較し,本方法の有効性,問題点,改良点について議論した。 | |||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | An implicit numerical method and the results of laminar and trubulent swirling flows in cylindrical annuli are presented.The study was motivated by the need to analize the decay of a swirl component of velocity along an annular duct,one of the important features in turbo-machinery,and one which could not be predicted by methods based on an inviscid flow assumption.A set of parabolized Navier-Stokes equations is used for the basic ome turbulent experimental data.On the basis of the calculated results,the present approach showed many possible patterns and characteristics of the flow. | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0389-4010 | |||||
資料番号 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 資料番号: NALTR0640000 | |||||
レポート番号 | ||||||
内容記述タイプ | Other | |||||
内容記述 | レポート番号: NAL TR-640T |