Hydrodynamic Drag on Non-Spherical Floc and Free-Settling Test

淡江大學機構典藏 > 工學院 > 化學工程與材料工程學系暨研究所 > 期刊論文 > Item 987654321/88196

jsp.display-item.identifier=請使用永久網址來引用或連結此文件: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/88196

题名:	Hydrodynamic Drag on Non-Spherical Floc and Free-Settling Test
作者:	Wu, R. M.;Lee, D. J.
贡献者:	淡江大學化學工程與材料工程學系
关键词:	drag;spheroid;porous;numerical;free-settling experiment
日期:	2001-09-01
上传时间:	2013-04-13 17:38:32 (UTC+8)
出版者:	I W A Publishing
摘要:	This work numerically investigates the hydrodynamic drag force exerted on a porous spheroid floc moving steadily through a quiescent Newtonian fluid over a wide range of the Reynolds number. The flow patterns for a highly porous spheroid moving at an elevated Reynolds number are basically the same as those at a low Reynolds number, which extends the applicable range of a creeping-flow based correlation to the higher Reynolds number regime. The shape effect becomes more prominent as the spheroid becomes more porous. Using the equivalent diameter, defined as the geometric mean diameter of the principal axes, leads to a universal correlation relating to the drag force, aspect ratio, and interior permeability. In addition, free-settling experiments are performed to estimate how the non-spherical shape affects the three sludge samples. The possible errors in data reduction for the free-settling test are attributed to the a/b ratio and the internal permeability. The errors range from 16-34% for a/b = 0.6-2.0.
關聯:	Water research 35(13), pp.3226-3234
DOI:	10.1016/S0043-1354(01)00050-1
显示于类别:	[化學工程與材料工程學系暨研究所] 期刊論文

文件中的档案:

档案	描述	大小	格式	浏览次数
index.html		0Kb	HTML	275	检视/开启

在機構典藏中所有的数据项都受到原著作权保护.

TAIR相关文章