| Item type |
紀要論文 / Departmental Bulletin Paper(1) |
| 公開日 |
2023-03-30 |
| タイトル |
|
|
タイトル |
曲がりを伴う矩形管内の乱流に関する実験的研究 |
| タイトル |
|
|
タイトル |
A Study on the Turbulent Duct flow in a Three-Dimensional Duct with Curvature |
|
言語 |
en |
| 言語 |
|
|
言語 |
jpn |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Turbulent Flow |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Curved Duct |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Internal Flow |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Three Dimensional Boundary Layer |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Secondary |
| 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
中西, 助次
Utsunomiya, Koji
Nakanishi, Suketsugu
|
| 抄録 |
|
|
内容記述タイプ |
Abstract |
|
内容記述 |
The turbulent flow in a duct with curvature was investigated by measuring the three dimensional flow fields. Because of the secondary flow influenced by centrifugal force in a curved duct, the effect of duct contraction and expansion were examined. The cross sectional size of the rectangular duct was 120mm by 2４0mm, with a curvature of 200°. The experiments were conducted for three duct geometries: a constant duct width （the standard case）, a contraction in duct width, and a duct expansion. The changes in duct width took place from the latter half of the duct curvature as it transitioned to the straight duct section. The results indicated that for the case of an expanding duct, the velocity defect flow was larger, turbulent intensity increased, and the turbulent boundary layer thickened and expanded in three dimensions, as compared with the standard straight duct case. When the flow was contracted, the turbulent intensity and the turbulent boundary layer thickness both decreased, with greater uniformity of the velocity profiles, as compared with the standard case. |
| 書誌情報 |
広島工業大学紀要. 研究編
巻 48,
p. 15-21,
発行日 2014-02
|
| 出版者 |
|
|
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 |
13469975 |
| 書誌レコードID |
|
|
収録物識別子タイプ |
NCID |
|
収録物識別子 |
AA11599110 |
| 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 |
research48_015-021.pdf (3.6 MB)
