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摘要:
An experimental study on the effect of cut angle on circular cylinders to the drag force is performed. Six cylinders were cut at different angles and the air flow impinges perpendicular to the cut surface of the cylinder. The cut angles applied include: 0°, 30°, 45°, 53°, 55°, and 75°. The shear layer visualisation on the surface of cylinder was conducted as well. Drag force was measured using a wind tunnel force balance and the wind speed was set so that a corresponding Rey-nolds number of 5.3 × 104 was achieved. Visualisation was carried out by covering the cylinder with paper wetted by mixture of oil and titanium dioxide powder. Experimental results show that drag force has similar trend to that of previous experiment results. The minimum drag coefficient is attained at the cut angle of 53°. From oil streak visualisation the streamlines pattern of the flow over the cylinder could be reconstructed.
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篇名 Oil Streak Visualisation of Fluid Flow Over Single D-Type Cylinder
来源期刊 力学国际期刊(英文) 学科 物理学
关键词 CUT Angle Drag Force Visualisation STREAMLINE
年,卷(期) 2012,(4) 所属期刊栏目
研究方向 页码范围 197-202
页数 6页 分类号 O3
字数 语种
DOI
五维指标
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研究主题发展历程
节点文献
CUT
Angle
Drag
Force
Visualisation
STREAMLINE
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研究分支
研究去脉
引文网络交叉学科
相关学者/机构
期刊影响力
力学国际期刊(英文)
月刊
2160-049X
武汉市江夏区汤逊湖北路38号光谷总部空间
出版文献量(篇)
280
总下载数(次)
0
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