Heat transfer and torque reduction by traveling wave-like blowing and suction in turbulent Taylor-Couette flow
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- MAMORI Hiroya
- Department of Mechanical and Intelligent Systems Engineering, Faculty of Informatics and Engineering, The University of Electro-Communications
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- FUKUDOME Koji
- Department of Mechanical Engineering, Faculty of Engineering, Tokyo University of Science
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- OGINO Kohei
- Department of Mechanical Engineering, Faculty of Engineering, Tokyo University of Science
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- FUKUSHIMA Naoya
- Department of Prime Mover Engineering, Faculty of Engineering, Tokai University
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- YAMAMOTO Makoto
- Department of Mechanical Engineering, Faculty of Engineering, Tokyo University of Science
書誌事項
- タイトル別名
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- Heat transfer enhancement and torque reduction by traveling wave-like blowing and suction in turbulent Taylor-Couette flow
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説明
<p>Direct numerical simulations of turbulent Taylor-Couette flows are performed to investigate the effect of a traveling wave control on torque and heat transfer. In the Taylor-Couette flow, inner and outer cylinders are rotating and immobile, respectively, and the temperature difference between cylinder walls is maintained as constant. The ratio between the inner and outer cylinder is 0.882, and the Reynolds number is set as 84,000. A traveling wave-like blowing and suction is imposed on an inner cylinder wall. A parametric study shows the effect of control parameters on torque and heat transfer. We focused on three characteristic parameter sets: heat transfer enhancement, relaminarization phenomenon, and simultaneous achievement of torque reduction and heat transfer enhancement. We employed identity equations by using three-component decomposition to clarify contributions from advection, turbulence, and diffusion on torque and Stanton number. The results indicated that the traveling wave control affects the turbulence and advection contributions.</p>
収録刊行物
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- Journal of Thermal Science and Technology
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Journal of Thermal Science and Technology 16 (1), JTST0003-JTST0003, 2021
一般社団法人日本機械学会・社団法人日本伝熱学会
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詳細情報 詳細情報について
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- CRID
- 1391694356248754560
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- NII論文ID
- 130007965503
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- ISSN
- 18805566
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- 本文言語コード
- en
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- 資料種別
- journal article
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- CiNii Articles
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- 使用不可
