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  1. 学術雑誌論文
  2. その他
  1. 部局別インデックス
  2. 工学部

Study on heat transfer and fluid flow characteristics with short rectangular plate fin of different pattern

http://hdl.handle.net/20.500.12000/115
http://hdl.handle.net/20.500.12000/115
7fe3bcd8-303e-4d2d-8461-8d97bbb15da4
名前 / ファイル ライセンス アクション
ETFS-D-06-00009.pdf ETFS-D-06-00009.pdf
Item type デフォルトアイテムタイプ(フル)(1)
公開日 2007-03-01
タイトル
タイトル Study on heat transfer and fluid flow characteristics with short rectangular plate fin of different pattern
言語 en
作成者 Islam, Md. Didarul

× Islam, Md. Didarul

en Islam, Md. Didarul

Oyakawa, Kenyu

× Oyakawa, Kenyu

en Oyakawa, Kenyu

Yaga, Minoru

× Yaga, Minoru

en Yaga, Minoru

Senaha, Izuru

× Senaha, Izuru

en Senaha, Izuru

Islam, Md. Didarul

× Islam, Md. Didarul

en Islam, Md. Didarul

親川, 兼勇

× 親川, 兼勇

ja 親川, 兼勇

屋我, 実

× 屋我, 実

ja 屋我, 実

瀬名波, 出

× 瀬名波, 出

ja 瀬名波, 出

アクセス権
アクセス権 open access
アクセス権URI http://purl.org/coar/access_right/c_abf2
主題
言語 en
主題Scheme Other
主題 Convective heat transfer
言語 en
主題Scheme Other
主題 Heat transfer enhancement
言語 en
主題Scheme Other
主題 Rectangular plate fin
言語 en
主題Scheme Other
主題 Longitudinal vortex
言語 en
主題Scheme Other
主題 Horseshoe vortex
言語 en
主題Scheme Other
主題 Infrared image
内容記述
内容記述タイプ Other
内容記述 A detailed experimental investigation of the heat transfer and fluid flow characteristics of finned surfaces was conducted for airflow (ReL = 6250–25,000) at a flat plate boundary layer and narrow duct corresponding to 200 mm and 20 mm duct height, respectively. Short rectangular fins of either aluminum or resin material were attached in 7 × 7 arrays to a heating surface and the fin height, inclination angle and fin pattern (co-angular and zigzag) were varied. The fin spacing to length ratios along the streamwise and spanwise directions were kept at Sx/L = 2 and Sz/L = 1, respectively. T-type thermocouples and an infrared camera with a 160 × 120-point In–Sb sensor were used to measure the wall temperature and the detailed heat transfer at the endwall along with fin base. Dye flow in a water channel and titanium oxide oil film flow patterns around the fins were observed to study the flow behavior and its effect on heat transfer. In case of co-angular pattern flow stagnated in front of the fin and formed a strong horseshoe vortex around the fin while the longitudinal vortexes generated by the side top edges touched the fin surface and the endwall. On the other hand in case of zigzag pattern a weak horse shoe vortex appeared in front of the fin while the longitudinal vortex struck the endwall mainly and a sinusoidal wavy flow behavior was observed. The friction factor value was found to be almost constant and somewhat larger for a zigzag pattern of fins than for a co-angular pattern. The heat transfer results show that a narrow rectangular duct of 20 mm height with fin arrays in a zigzag pattern is the most effective, exhibiting a heat transfer enhancement at the endwall of more than four times over the case without fins wherein co-angular is the least recommended as it exhibits enhancement about a factor of more than three times. At flat plate boundary layer, i.e. in tall duct case both co-angular and zigzag patterns show almost same overall heat transfer enhancement about a factor of three times over the case without fins.
内容記述タイプ Other
内容記述 論文
出版者
言語 en
出版者 Elsevier
言語
言語 eng
資源タイプ
資源タイプ journal article
資源タイプ識別子 http://purl.org/coar/resource_type/c_6501
出版タイプ
出版タイプ AM
出版タイプResource http://purl.org/coar/version/c_ab4af688f83e57aa
識別子
識別子 http://hdl.handle.net/20.500.12000/115
識別子タイプ HDL
関連情報
関連識別子
識別子タイプ URI
関連識別子 http://www.sciencedirect.com/science/journal/08941777
関連識別子
識別子タイプ DOI
関連識別子 10.1016/j.expthermflusci.2006.05.009
収録物識別子
収録物識別子タイプ ISSN
収録物識別子 0894-1777
収録物識別子タイプ NCID
収録物識別子 AA10680133
収録物名
言語 en
収録物名 Experimental thermal and fluid science : ETF science
書誌情報
巻 31, 号 4, p. 367-379
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