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Please use this identifier to cite or link to this item: http://nchuir.lib.nchu.edu.tw/handle/309270000/142451

標題: 邊界層流中點式煙流延散之研究
作者: 方富民;莊秉潔;陳鉅昌;宋邦壽;許志祥
Contributors: 工學院
關鍵字: 煙流延散;水洞試驗
日期: 1998-07
Issue Date: 2013-05-02 21:00:49 (UTC+8)
Publisher: 國立中興大學工學院;Airiti Press Inc.
摘要: 本研究藉水洞實驗的方式探討鄉村、市郊與都市三種形式的風況中點式污染源的延散機制。實驗中於不同地表高程處以針管釋放螢光染料,並配合雷射切光的視化技術,將各瞬間之數位化濃度場存入電腦資料庫中,據以統計分析平均濃度場中煙流橫向尺度(水平及垂直兩個方向)與濃度質心之空間變化。
The mechanisms of elevated point-source dispersion were investigated in a water tunnel within three types of turbulent boundary layers, corresponding respectively to rural, suburb and urban ground conditions. In the experiments, the pollutant was produced by injecting a nonbuoyant fluorescent solution into the flow at various elevations within the shear flows. By adopting an image technique, the instantaneous concentration fields, in forms of laser-sheet profiles, were monitored and digitized. They were further analyzed to obtain the variations of the transverse dispersion scales (horizontal and vertical) and the concentration centroids.
Relation: 興大工程學報, Volume 9, Issue 2, Page(s) 23-33.
Appears in Collections:[期刊-興大工程學刊(原興大工程學報)] 第09卷 第2期
[依教師分類] 方富民
[依教師分類] 莊秉潔
[依教師分類] 莊秉潔
[依教師分類] 莊秉潔

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