ターボ機械内の圧縮性流れ解析

Material type: 文書・図像類

Author: 池川, 昌弘ほか

Publisher: 航空宇宙技術研究所

Publication date: 1985-11

Material Format: Digital

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Note (General)：: Compressible flow analysis in turbomachinery is an important engineering problem in improving the performance of these machines. Recent remarkable adv...

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Material Type: 文書・図像類
Title: ターボ機械内の圧縮性流れ解析
Author/Editor: 池川, 昌弘
鹿野, 芳雄
中野, 晋
Ikegawa, Masahiro
Shikano, Yoshio
Nakano, Susumu
Author Heading: 池川, 昌弘
鹿野, 芳雄
中野, 晋
Ikegawa, Masahiro
Shikano, Yoshio
Nakano, Susumu
Publication, Distribution, etc.: 航空宇宙技術研究所
Publication Date: 1985-11
Publication Date (W3CDTF): 1985-11
Alternative Title: Compressible Flow Analysis in Turbomachinery
Periodical title: 航空宇宙技術研究所特別資料 = Special Publication of National Aerospace Laboratory SP-5
No. or year of volume/issue: 5
Volume: 5
Pages: 69-76
ISSN (Periodical Title): ISSN : 0289-260X
Text Language Code: jpn
Target Audience: 一般
Note (General): Compressible flow analysis in turbomachinery is an important engineering problem in improving the performance of these machines. Recent remarkable advances in computer capabilities and solution algorithms enable calculation of complete three-dimensional flows. In this paper, three-dimensional potential flow analysis by the finite element method, and two- and three-dimensional turbulent flow analysis based on the two-equation turbulence model proposed by Launder and Spalding are presented. For potential flow analysis, a nonlinear partial differential equation with respect to velocity potential is formulated by the method of weighted residuals and is solved by the Newton-Raphson method. To calculate turbulent flows in arbitrarily shaped flow regions, a new control volume method combined with the body-fitted curvilinear coordinate system is developed to obtain spatially discretized governing equations. As numerical examples, three-dimensional potential flow in turbine blades and centrifugal compressors, and two- and three-dimensional turbulent flow in turbine nozzles are analysed. These results are compared with experimental data. It is concluded that potential flow analysis can be effectively employed as a design tool for turbomachinery because of its short computing time, and that turbulent flow analysis gives fairly good results and is available for flow prediction under design and off-design conditions in cascades of turbomachinery.
資料番号: NALSP0005010
レポート番号: NAL SP-5
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