| Item type |
紀要論文 / Departmental Bulletin Paper(1) |
| 公開日 |
2023-03-30 |
| タイトル |
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|
タイトル |
十分発達した円管内流れにおける撹乱の影響 |
| タイトル |
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|
タイトル |
The Effect of Attached Manipulator Ring on a Fully Developed Turbulent Pipe Flow |
|
言語 |
en |
| 言語 |
|
|
言語 |
jpn |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Pipe Flow |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Mean Velocity |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Ring-Type Manipulator |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Turbulent Flow |
| キーワード |
|
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主題Scheme |
Other |
|
主題 |
Relaxation Process |
| 資源タイプ |
|
|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
|
資源タイプ |
departmental bulletin paper |
| 著者 |
宇都宮, 浩司
西, 茂夫
中西, 助次
大坂, 英雄
Utsunomiya, Kouji
Nishi, Shigeo
Nakanishi, Suketsugu
Osaka, Hideo
|
| 抄録 |
|
|
内容記述タイプ |
Abstract |
|
内容記述 |
The response of a fully developed pipe flow to an attached ring-type manipulator with rectangular cross section was investigated by measuring the mean velocity profiles. The ring-type element has a height of 0.14 times the pipe radius and was positioned rigidly in a 99.8 mm diameter，smooth-walled，circular pipe in which air was flowing at Reynolds number of 6.2 x 10^4. The results indicated that the flow was significantly perturbed by the manipulator ring and the return of the flow to a self-preserving state without disturbance was achieved either at about 960 times the manipulator height or at about 67 times the pipe diameter. Furthermore，near the reattachment point，which was about 8.2 times the manipulator height from that tip，the mean velocity profile in the core region of the pipe was much more uniform and the velocity gradient was steeper near the wall than a fully developed turbulent flow，indicating enhanced mixing. The boundary layer characteristics，such as the skin friction coefficient and boundary layer thickness，were also altered in the streamwise direction upon a pulsewise disturbance. |
| 書誌情報 |
広島工業大学研究紀要
巻 31,
p. 89-96,
発行日 1997-02
|
| 出版者 |
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|
出版者 |
広島工業大学 |
| ISSN |
|
|
収録物識別子タイプ |
ISSN |
|
収録物識別子 |
03851672 |
| 書誌レコードID |
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|
収録物識別子タイプ |
NCID |
|
収録物識別子 |
AN0021271X |
| 関連サイト |
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|
識別子タイプ |
URI |
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|
関連識別子 |
http://ci.nii.ac.jp/naid/40003284360/ |
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|
関連名称 |
http://ci.nii.ac.jp/naid/40003284360/ |
| フォーマット |
|
|
内容記述タイプ |
Other |
|
内容記述 |
application/pdf |
| 著者版フラグ |
|
|
出版タイプ |
VoR |
|
出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| 日本十進分類法 |
|
|
主題Scheme |
NDC |
|
主題 |
423.84 |
kenkyukiyo31089.pdf (446.6 kB)
