文章基本信息

标题：An Experimental Study of Unsteady Transonic Flow in a Steam Control Valve with Simple Model
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作者：Koichi YONEZAWA ; Yosuke TOYOHIRA ; Tomohide NAGASHIMA 等
期刊名称：Journal of Environment and Engineering
电子版ISSN：1880-988X
出版年度：2010
卷号：5
期号：1
页码：134-143
DOI：10.1299/jee.5.134
出版社：The Japan Society of Mechanical Engineers
摘要：A steam control valve is used to control the steam flow from a steam generator to a turbine in power plants. The flow field in the steam control valve is usually complicated and transonic. A flow-induced vibration can occur in the valve and may cause unexpected shutdown of the plant. An experimental study is conducted to clarify the characteristics of the flow in the steam control valve. In the present study, scale effects on the condition of occurrence of various flow patterns are investigated. Experimental results show various flow patterns including new patterns which have not been reported. Additionally, even under the same operation condition, different flow patterns are observed under a certain range of condition. This effect is found to be comparable with the scale effect.
关键词：Valve;Transonic Flow;Flow Induced Vibration;Scale Effect;Acoustic Resonance