| Item type |
テクニカルレポート / Technical Report(1) |
| 公開日 |
2015-03-26 |
| タイトル |
|
|
タイトル |
ターボ機械内の圧縮性流れ解析 |
| 言語 |
|
|
言語 |
jpn |
| 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 |
| その他のタイトル（英） |
|
|
その他のタイトル |
Compressible Flow Analysis in Turbomachinery |
| 著者 |
池川, 昌弘
鹿野, 芳雄
中野, 晋
Ikegawa, Masahiro
Shikano, Yoshio
Nakano, Susumu
|
| 著者所属 |
|
|
|
日立製作所機械研究所 |
| 著者所属 |
|
|
|
日立製作所機械研究所 |
| 著者所属 |
|
|
|
日立製作所機械研究所 |
| 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 |
航空宇宙技術研究所特別資料
en : Special Publication of National Aerospace Laboratory SP-5
巻 5,
p. 69-76,
発行日 1985-11
|
| 抄録（英） |
|
|
内容記述タイプ |
Other |
|
内容記述 |
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. |
| ISSN |
|
|
収録物識別子タイプ |
ISSN |
|
収録物識別子 |
0289-260X |
| 書誌レコードID |
|
|
収録物識別子タイプ |
NCID |
|
収録物識別子 |
AN10097345 |
| 資料番号 |
|
|
内容記述タイプ |
Other |
|
内容記述 |
資料番号: NALSP0005010 |
| 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 SP-5 |
nalsp0005010.pdf (569.4 kB)
