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Wang Chunxu, Zeng Gewei, Xu Jian. 湍流边界层脉动压力波数—频率谱模型对比研究J. Chinese Journal of Ship Research, 2011, 6(1): 35-40. DOI: 10.3969/j.issn.1673-3185.2011.01.007
Citation:
Wang Chunxu, Zeng Gewei, Xu Jian. 湍流边界层脉动压力波数—频率谱模型对比研究J. Chinese Journal of Ship Research, 2011, 6(1): 35-40. DOI: 10.3969/j.issn.1673-3185.2011.01.007
Wang Chunxu, Zeng Gewei, Xu Jian. 湍流边界层脉动压力波数—频率谱模型对比研究J. Chinese Journal of Ship Research, 2011, 6(1): 35-40. DOI: 10.3969/j.issn.1673-3185.2011.01.007
Citation:
Wang Chunxu, Zeng Gewei, Xu Jian. 湍流边界层脉动压力波数—频率谱模型对比研究J. Chinese Journal of Ship Research, 2011, 6(1): 35-40. 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
Wang Chunxu
,
Zeng Gewei
,
Xu Jian
Graphical Abstract
Abstract
Abstract
湍流边界层噪声是舰船主要水动力噪声之一。湍流边界层噪声预报须选用适当的脉动压力波数—频率谱模型。引入6种常用的脉动压力波数-频率谱模型,在波数域和频域内进行对比;运用这些模型对槽道流边界层脉动压力自功率谱进行预报,并引入试验结果进行对比,为工程应用中选择适当的脉动压力波数—频率谱模型提供依据:Corcos模型物理意义明确,但预报精度稍差;Chase模型表达式复杂,经验性更强,物理意义不明晰,预报精度较高。
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