张娟, 李天匀, 刘敬喜, 朱翔. 空间不均匀湍流边界层激励下声呐腔自噪声统计能量分析[J]. 中国舰船研究, 2007, 2(6): 24-29. DOI: 10.3969/j.issn.1673-3185.2007.06.005
引用本文: 张娟, 李天匀, 刘敬喜, 朱翔. 空间不均匀湍流边界层激励下声呐腔自噪声统计能量分析[J]. 中国舰船研究, 2007, 2(6): 24-29. DOI: 10.3969/j.issn.1673-3185.2007.06.005
Zhang Juan, Li Tianyun, Liu Jingxi, Zhu Xiang. SEA Analytical Model of Sonar' s Self-noise Induced by Turbulent Boundary Layer[J]. Chinese Journal of Ship Research, 2007, 2(6): 24-29. DOI: 10.3969/j.issn.1673-3185.2007.06.005
Citation: Zhang Juan, Li Tianyun, Liu Jingxi, Zhu Xiang. SEA Analytical Model of Sonar' s Self-noise Induced by Turbulent Boundary Layer[J]. Chinese Journal of Ship Research, 2007, 2(6): 24-29. DOI: 10.3969/j.issn.1673-3185.2007.06.005

空间不均匀湍流边界层激励下声呐腔自噪声统计能量分析

SEA Analytical Model of Sonar' s Self-noise Induced by Turbulent Boundary Layer

  • 摘要: 利用统计能量分析法建立了湍流边界层激励下水下航行器声呐腔自噪声水动力分量的计算模型。采用一种新的回转体模型模拟声呐罩,重点讨论空间分布不均匀的湍流边界层对声呐罩的输入功率的计算及统计能量分析参数的确定,利用Fluent软件计算边界层的分离点及一些重要参数。最后给出了一具体的算例。可作为空间不均匀湍流边界层激励下声呐腔自噪声的工程估算的参考。

     

    Abstract: A sonar cavity' s self-noise computational model is created using SEA (Statistical Energy Analysis) method. A new circular cylinder model is used to analyze the acoustic charateristics of sonar dome. When building model, emphases are placed on the calculation of input power from the turbulent boundary layer which is inhomogeneous to the sonar dome and SEA parameters. This article can be referred as an further discussion on this problem.

     

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