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Vortex Noise Optimization of the Convex Body Based on Orthogonal Test Method
Pages: 29-32
Year: Issue:  3
Journal: Ocean Technology

Keyword:  水下航行器凸体涡流噪声正交试验;
Abstract: 凸体作为水下航行器表面的一种常见附体结构,其产生的涡流噪声对搭载在水下航行器上的声学仪器的信号精度有非常重要的影响.在马赫数为0.004 8条件下,采用LES-Lighthill等效声源法对三维方形凸体的流场及声场进行仿真,形象地再现了凸体周围涡旋运动变化规律,分析了涡流流动机制及辐射噪声特征.通过正交试验设计,以噪声最小为目标,优化了三维方形凸体结构参数.研究成果为水下航行器附体结构的设计提供了依据.
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