The Effects of the Channel Width on Heat-Transfer Augmentation in a Sinusoidal Wave Channel

• OYAKAWA K.

  Faculty of Engineering, Ryukyu University

• SHINZATO Takao

  Faculty of Engineering, Ryukyu University

• MABUCHI Ikuo

  Faculty of Engineering, Gifu University

抄録

This paper investigates how heat transfer and fluid flow are affected by the channel width as it is varied from small to large scale in a wavy sinusoidal channel. The mean Nusselt numbers in periodic fully developed regimes depend on the maximum Nusselt number at the reattachment point of the flow separated from the top of the peak, and reach maximum at P/H=2.0〜1.6 (P:pitch, H:width) ; the friction factor becomes maximal at the same ratio P/H=2.0〜1.6. The performance ratio η_<II>, at equal pumping power, attains a maximum at P/H=2.29〜2.0. Thus, it can be concluded that the channel is optimal at P/H=2.0 for augmenting heat transfer.

収録刊行物

• JSME Int. J., Series II

  JSME Int. J., Series II 32 (3), 403-410, 1989

  一般社団法人日本機械学会

キーワード

• Convective Heat-Transfer
• Heat-Transfer Augmentation
• Wavy Channel
• Reattachment Point
• Pressure Drop
• Separated Flow
• Flow Visualization

詳細情報

• CRID: 1570854177177226368
• NII論文ID: 110002494279
• NII書誌ID: AA10680596
• ISSN: 09148817
• 本文言語コード: en
• データソース種別:
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