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oai:u-ryukyu.repo.nii.ac.jp:02000812
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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
Heat Thansfer Enhancement Using Slat at Reattachment Region Downstream of Backward-Facing Step
親川, 兼勇
斉藤, 武史
照屋, 功
馬渕, 幾夫
Oyakawa, Kenyu
Saitoh, Takeshi
Teruya, Isao
Mabuchi, Ikuo
open access
Copyright (c) 1995 日本機械学会
Forced Convection
Heat Transfer Enhancement
Separation
Shear Flow
Expansion Ratio
Reattachment Region
Pressure Loss
Performance Ratio
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.
論文
日本機械学会
1995-12-25
jpn
journal article
VoR
http://hdl.handle.net/20.500.12000/241
http://hdl.handle.net/20.500.12000/241
https://u-ryukyu.repo.nii.ac.jp/records/2000812
03875016
AN00187441
日本機械学会論文集. B編
Transactions of the Japan Society of Mechanical Engineers. B
61
592
194
199
https://u-ryukyu.repo.nii.ac.jp/record/2000812/files/teruya_i04.pdf