涡流
机械
叶尖间隙
物理
材料科学
轴流压缩机
泄漏(经济)
流量控制(数据)
工程类
机械工程
气体压缩机
电信
宏观经济学
经济
作者
Alessandro Corsini,Franco Rispoli,Anthony G. Sheard
出处
期刊:Journal of turbomachinery
[ASME International]
日期:2010-03-24
卷期号:132 (3)
被引量:18
摘要
This paper reports on quantitative tests of passive techniques for rotor-tip noise control in low-speed axial flow fans, based on blade-tip modifications involving the addition of antivortex appendages as end-plates. The end-plate thickness chordwise distribution is determined to control the chordwise evolution of the leakage vortex rotation number. The results confirm that the new end-plate configurations provide a mechanism by which leakage vortex bursting can be avoided. As such, the modified rotors represent an effective means of passive control of vortex breakdown.
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