中国舰船研究2011，Vol.6Issue(1)：35-40,6.DOI:10.3969/j.issn.1673-3185.2011.01.007
湍流边界层脉动压力波数-频率谱模型对比研究
A Comparative Study of Models for the Wavenumber-Frequency Spectrum of TBL Fluctuation Pressure
摘要
Abstract
The Turbulent Boundary Layers (TBL) noise is one of the major components of hydrodynamic noise.For prediction of the TBL noise, however it requires a suitable model of the wavenumber-frequency spectrum of TBL fluctuation pressure, so choosing a most appropriate model becomes substantially important.Six kinds of wavenumber-frequency spectrum models were introduced and compared in frequency domain and wavenumber domain in this study.The auto-spectrum of TBL pressure of a channel was calculated with the six models as mentioned above, and also compared with the experimental results.Some of available results are presented for practical use.The study shows that the Corcos model has definite physical significance but less accuracy, other than Chase model, which is empirical and has much more complicated expression, but usually leads to more accurate results with the experimental's.关键词
湍流边界层噪声/波数-频率谱模型/脉动压力/自功率谱分类
交通工程引用本文复制引用
王春旭,曾革委,许建..湍流边界层脉动压力波数-频率谱模型对比研究[J].中国舰船研究,2011,6(1):35-40,6.基金项目
"十一五"装备预研课题(51310040402) （51310040402）
