流动诱导空腔振荡频率方程的改进
Zhendong Gongcheng Xuebao/Journal of Vibration Engineering（2004）
Abstract
研究了流动诱导空腔振荡的机理,并做了相应的实验.基于流动诱导空腔振荡的机理和小尺寸空腔(长深比L/D=4,2)的实验,对预测流动诱导空腔自由剪切层自激振荡模态的频率方程和声学模态的频率方程作了合理改进,实验结果表明,这一改进提高了流动诱导空腔剪切层自激振荡模态和声学模态的预测精度,并能用于工程计算.
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Key words
Cavity flow,Frequency prediction,Oscillation frequency,Pressure oscillation
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