A modification of the e(exp N) method for three-dimensional boundary layers

Material type: 文書・図像類

Author: 跡部, 隆ほか

Publisher: 航空宇宙技術研究所

Publication date: 2000-12

Material Format: Digital

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Note (General)：: 航空宇宙技術研究所 27-29 Sept.2000 東京日本National Aerospace Laboratory 27-29 Sept.2000 Tokyo Japan修正e(exp N)法を使って3次元境界層の遷移予測を数値的に検討した。主要概念は、最増幅擾乱波に相当する波数を単独で決定す...

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Material Type: 文書・図像類
Title: A modification of the e(exp N) method for three-dimensional boundary layers
Author/Editor: 跡部, 隆
山本, 稀義
伊藤, 信毅
Atobe, Takashi
Yamamoto, Kiyoshi
Ito, Nobutake
Author Heading: 跡部, 隆
山本, 稀義
伊藤, 信毅
Atobe, Takashi
Yamamoto, Kiyoshi
Ito, Nobutake
Publication, Distribution, etc.: 航空宇宙技術研究所
Publication Date: 2000-12
Publication Date (W3CDTF): 2000-12
Alternative Title: 3次元境界層に適したe(exp N)法の修正
Periodical title: 航空宇宙技術研究所特別資料 = Special Publication of National Aerospace Laboratory
No. or year of volume/issue: 48T
Volume: 48T
Pages: 5-6
ISSN (Periodical Title): ISSN : 0289-260X
Text Language Code: eng
Subject Heading: 3次元境界層
e(exp N)法
遷移予測
擾乱波数
層流-乱流遷移
数値予測コード
複素放射線理論
擾乱波伝播経路
three dimensional boundary layer
e(exp N) method
transition prediction
disturbance wave number
laminar turbulent transition
numerical prediction code
complex ray theory
disturbance wave propagation path
Target Audience: 一般
Note (General): 航空宇宙技術研究所 27-29 Sept.2000 東京日本
National Aerospace Laboratory 27-29 Sept.2000 Tokyo Japan
修正e(exp N)法を使って3次元境界層の遷移予測を数値的に検討した。主要概念は、最増幅擾乱波に相当する波数を単独で決定するためe(exp N)法の中に複素放射線理論を組み込むことである。後退角50度の片揺れ円筒回りの流れに対する計算から、N.Itoh(1986)が得た理論的結果とN因子を除きよく一致することが分かった。
Transition prediction of three-dimensional boundary layer is numerically investigated by the use of a modified e(exp N) method. Main idea is the corporation of a complex ray theory into the e(exp N) method so as to uniquely determine a wave number, which corresponds to a most amplified disturbance wave. From the calculation for a flow around a yawed circular cylinder with sweep angle 50 deg, it is found that the results agree well with a theoretical one obtained by N. Itoh (1986) excepting the N factor.
資料番号: AA0028637001
レポート番号: NAL SP-48T
Access Restrictions: 限定公開
Periodical Title (NCID): AN10097345
https://ci.nii.ac.jp/ncid/AN10097345
Data Provider (Database): 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）
https://irdb.nii.ac.jp
Original Data Provider (Database): 宇宙航空研究開発機構 : 宇宙航空研究開発機構リポジトリ