2026-03-10T03:24:55Z https://kanazawa-u.repo.nii.ac.jp/oai

oai:kanazawa-u.repo.nii.ac.jp:00008759 2024-06-20T06:25:47Z 934:935:936

コロナ放電を利用した対流伝熱の促進: 流れと平行なワイヤ電極配置に対する実験 Heat Transfer Enhancement in a Convective Field with Corona Discharge: Experimental Study for Parallel Wire-Electrode Arrangement 20179708 多田, 幸生 20019780 滝本, 昭 植田, 大作 30019765 林, 勇二郎 Copyright © The Japan Society of Mechanical Engineers 日本機械学会 This study has been conducted to clarify the mechanism of heat transfer enhancement in a convective field with ionic wind. Experiments were performed in an air channel-flow in which equally spaced positive wire-electrodes were set in parallel to the primary flow direction. The ionic wind was induced by applying electric field to bring about a corona discharge. The visualization of the flow patterns by using smoke-tracer method and the measurements on velocity profiles, friction factor, and heat transfer coefficient were systematically carried out. By combination of the primary flow with the ionic winds, the pairs of counter-rotating longitudinal vortex rolls were created over the wall surface. Heat transfer augmentation utilizing the combined flow was achieved especially in the laminar flow range, being accompanied with an increase in the pressure drop. On the basis of the results, the mechanism of heat transfer enhancement was discussed. The Japan Society of Mechanical Engineers = 日本機械学会 1991-01-25 2017-10-03 jpn journal article VoR http://hdl.handle.net/2297/36800 https://kanazawa-u.repo.nii.ac.jp/records/8759 10.1299/kikaib.57.217 https://www.jstage.jst.go.jp/browse/kikaib1979/-char/ja/ http://www.jsme.or.jp/ http://ci.nii.ac.jp/naid/110002389326 AN00187441 0387-5016 日本機械学會論文集 B編 = Transactions of the Japan Society of Mechanical Engineers Series B 57 533 217 222 https://kanazawa-u.repo.nii.ac.jp/record/8759/files/TE-PR-TAKIMOTO-A-217.pdf application/pdf 663.9 kB 2017-10-03