淡江大學機構典藏:Item 987654321/88195
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    题名: Flow Field and Particle Attachment in a Straight Pipe with a Symmetric Cavity
    其它题名: 直管對稱凹槽中之流場及粒子附著
    作者: 謝之真;C. C. Hsieh;文浩然;H. J. Wen;吳容銘;Wu, R. M.;李篤中;Lee, D. J.
    贡献者: 淡江大學化學工程與材料工程學系
    关键词: Drinking Water;Symmetric Cavity;Numerical;Particle Deposition
    日期: 2001-03
    上传时间: 2013-04-13 17:37:20 (UTC+8)
    出版者: 新竹市：臺灣化學工程學會
    摘要: 在飲用水系統之接管中，接管處常形成凹槽，本文模擬流體在圓直管凹槽中之流態及粒子在管壁上之分佈頻率，流體在凹槽中之流速甚小於在直管內，並且產生一或多個迴流區。當不考慮粒子撞擊管壁又離開之脫附行為，凹槽的存在對粒子分佈影響不大，但若考慮粒子之脫附行為，粒子極易聚集在凹槽處，因而影響飲用水水質。
    This paper investigated numerically the fluid flow field over a symmetric cavity in a straight pipe, as well as the frequency distribution of particle deposition on the pipe wall. The cavity flow was much weaker than that in the bulk stream, and exhibited one or several circulation zones. When considering no particle detachment, the existence of a cavity has little effect on the attached particle number distribution. However, if particle detachment is taken into account, the cavity could collect much more particles than the remaining wall regime did, which would lead to a negative impact on drinking water quality.
    關聯: Journal of the Chinese Institute of Chemical Engineers 32(2), pp.177-182
    显示于类别:[化學工程與材料工程學系暨研究所] 期刊論文

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