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以Rossiter和Heller的开式空腔流激振荡物理机制与模态预估分析方法为基础,采用量纲分析方法,对描述腔体流激振荡特性的参数进行无量纲处理后进行了分析,并提出了一种新的激振频率预测半经验公式中常数值选取方法,通过风洞试验结果和国外文献结果进行验证,表明该方法基本可行。
Based on Rossiter and Heller ’s open-cavity flow-induced oscillation physical mechanism and modal prediction analysis method, the dimensionless analysis method is used to describe the parameters of the cavity flow-induced oscillation, A new method for selecting constants in semi-empirical formula of exciting frequency prediction is proposed. The results of wind tunnel test and foreign literature verify that this method is feasible.