基于CFD标体结构流场及声学仿真分析

Analysis on the Flow Field and Acoustic Simulation of a Submersible Buoy System Based on CFD

为了更好地研究潜标标体结构在水下受到流体的扰动情况,对设计的4种标体结构在水下的流场分布情况及噪声情况进行了仿真分析和比较研究。借助流体分析软件FLUENT对4种标体结构周围流场中的速度场、压力场及标体周围产生流噪声的大小进行了仿真分析,比较4种结构对流场的干扰大小,争取得到对流场干扰较小的标体结构外型。通过比较分析结果,可以对现有标体结构进行针对性的改进,同时为后期标体结构设计指明了方向,能够使标体在水中更好地发挥作用和功能,增加使用寿命提高工作准确度。

In order to study the interference of the submersible buoy structure underwater, analysis on the flow field and acoustic distribution of the four submersible buoy structures underwater is conducted in a simulated and compared manner. The velocity field and pressure field in the flow field, the sound pressure around the four kinds of structures are simulated by FLUENT, and the interference of the four structures to the flow field is compared to obtain the submersible buoy structure with fewer disturbances to the flow field. By comparing the analysis results, it is feasible to improve the existing submersible buoy structure, and point out the orientation for later structure design, which can ensure that the structure plays a better role in water, so as to increase the service life and improve the work accuracy.