水車吸出し管内に発生する渦心の挙動について

Material type: 文書・図像類

Author: 水谷, 充ほか

Publisher: 愛知工業大学

Publication date: 1989-03-31

Material Format: Digital

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Note (General)：: The vibration in the draft tube of a water turbine becomes most severe when the turbine is running near one-half of its normal load. This is caused pr...

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Material Type: 文書・図像類
Title: 水車吸出し管内に発生する渦心の挙動について
Author/Editor: 水谷, 充
村上, 光清
Author Heading: 水谷, 充
村上, 光清
Publication, Distribution, etc.: 愛知工業大学
Publication Date: 1989-03-31
Publication Date (W3CDTF): 1989-03-31
Alternative Title: スイシャスイダシカンナイニハッセイスルカシンノキョドウニツイテ
On the Motion of a Vortex Core in a Water-Turbine Draft Tube
Periodical title: 愛知工業大学研究報告. B, 専門関係論文集 = Bulletin of Aichi Institute of Technology. Part B
No. or year of volume/issue: 24
Volume: 24
Pages: 67-73
ISSN (Periodical Title): ISSN : 0387-0812
Text Language Code: jpn
Target Audience: 一般
Note (General): The vibration in the draft tube of a water turbine becomes most severe when the turbine is running near one-half of its normal load. This is caused principally by the eccentric vortex core rotating around the center of the draft tube. This paper describes the results of a theoretical investigation of frequency and force of the periodic vibration caused by the eccentric vortex core. The vortex core can be stable and is concentric with the draft tube when the radius ratio of the core to the draft tube is less than 0.577. When the ratio grows beyond 0.577,the vortex core becomes unstable and takes an eccentric position about the tube axis. The eccentricity of the vortex core can not be determined theoretically and its magnitude is estimated on the basis of the experimental results obtained from a model draft tube. The vortex core is seen to rotate about the tube axis and to move along the boundary layer of the draft tube wall.
identifier:http://repository.aitech.ac.jp/dspace/handle/11133/820
Format (IMT): application/pdf
Source: http://repository.aitech.ac.jp/dspace/bitstream/11133/820/1/%e7%b4%80%e8%a6%8124%e5%8f%b7B%28P67-73%29.pdf
http://repository.aitech.ac.jp/dspace/bitstream/11133/820/1/%e7%b4%80%e8%a6%8124%e5%8f%b7B%28P67-73%29.pdf
Access Restrictions: 限定公開
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): 愛知工業大学 : 愛知工業大学学術情報リポジトリ