淡江大學機構典藏:Item 987654321/83692
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    题名: Fluid Flow and Heat Transfer in Duct Fan Flows with Top-wall Rectangular-wing Turbulators
    作者: Chen, T. Y.;Chen, Y. H.
    贡献者: 淡江大學航空太空工程學系
    关键词: Fan flow;Turbulator;Convective heat transfer
    日期: 2008-06
    上传时间: 2013-03-20 16:54:12 (UTC+8)
    出版者: 臺北市:中華民國力學學會
    摘要: Fluid flow and heat transfer in duct fan flows with a 90° rectangular-wing turbulator, mounted on the top duct wall, were experimentally studied and compared with the bottom-wall turbulator results. Threecomponent velocities were measured to characterize the flow structures and to obtain near-wall flow parameters. Temperatures on heat transfer surfaces were measured to obtain Nusselt number distributions. Results show that the turbulator has the effect to increase the near-wall axial mean velocity, axial vorticity and turbulent kinetic energy, and, consequently, augment the heat transfer. The axial mean velocity and axial vorticity play an influential role on the heat transfer distributions for the flows across the top-wall and bottom-wall turbulators, respectively.
    關聯: Journal of Mechanics 24(2), pp.N15-N19
    DOI: 10.1017/S1727719100002252
    显示于类别:[航空太空工程學系暨研究所] 期刊論文

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