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Title :スラットを用いた後向きステップ下流の再付着領域の熱伝達促進
Title alternative :Heat Thansfer Enhancement Using Slat at Reattachment Region Downstream of Backward-Facing Step
Authors :親川, 兼勇
斉藤, 武史
照屋, 功
馬渕, 幾夫
Authors alternative :Oyakawa, Kenyu
Saitoh, Takeshi
Teruya, Isao
Mabuchi, Ikuo
Issue Date :25-Dec-1995
Abstract :The effects on the local heat transfer and pressure coefficients of a slat downstream of a backward-facing step were investigated. The inclinations of the slat placed on the wall opposite the step were varied in the range of θ = 10~60° for both slat lengths of 20 mm and 30 mm, with the aim of augmenting and controlling the heat transfer characteristics. The reattachment region of the main flow shifted upstream due to the increase of the amount of circulating bubbles formed behind the slat when the inclination angle was increased, which enhanced the heat transfer in the recirculating region. These tendencies are marked with a large expansion ratio. It was also found that the performance ratio η (the ratio of averaged heat transfer with a slat to that without a slat under the condition of equivalent pumping power) is larger than unity.
Type Local :雑誌掲載論文
ISSN :03875016
Publisher :日本機械学会
URI :http://hdl.handle.net/20.500.12000/241
Citation :日本機械学会論文集. B編 = Transactions of the Japan Society of Mechanical Engineers. B Vol.61 no.592 p.194 -199
Appears in Collections:Peer-reviewed Journal Articles (Faculty of Engineering)

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