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| Title | : | 流路内壁面近くに置かれた鈍頭物体による伝熱促進 |
| Title alternative | : | Heat Transfer Enhancement in Duct with Blunt Body Inserted Close to Its Wall |
| Authors | : | 親川, 兼勇
興梠, 泰明
屋我, 実
宮藤, 義孝 |
| Authors alternative | : | Oyakawa, Kenyu
Kourogi, Yasuaki
Yaga, Minoru
Miyafuji, Yoshitaka |
| Issue Date | : | 25-Feb-2004 |
| Abstract | : | This paper shows the effects of clearance length between a body and a duct wall, and duct height on the heat transfer characteristics and flow behavior at downstream region of the body when a blunt body was set in a parallel plate duct with some distance separating it from the duct wall as a turbulence promoter. At the ratio of clearance length to body height, C/D=0.05～0.1, the heat transfer was characterized by the reattachment of shear flow separated from the body. Furthermore, the heat transfer depended on both the reattachment flow and the separation vortex at C/D=0.15～0.2, and the side vortex induced by Karman vortex at C/D=0.25 and 0.275. The reattachment flow gives a superior effect to enhance heat transfer at low Reynolds number, but at larger Reynolds number, the side vortex induced by Karman vortex becomes more effective to heat transfer enhancement. |
| Type Local | : | 雑誌掲載論文 |
| ISSN | : | 03875016 |
| Publisher | : | 日本機械学会 |
| URI | : | http://hdl.handle.net/20.500.12000/132 |
| Citation | : | 日本機械学会論文集. B編 = Transactions of the Japan Society of Mechanical Engineers. B Vol.70 no.690 p.157 -163 |
| Appears in Collections | : | Peer-reviewed Journal Articles (Faculty of Engineering)
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| oyakawa_k11.pdf | | 666Kb | Adobe PDF | View/Open |
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