规则波中水面舰船流噪声数值研究  

Numerical Study of Surface Ship Flow Noise in Regular Waves

作　　者：张昕宇 向阳[1,2] 王文博 ZHANG Xinyu;XIANG Yang;WANG Wenbo(Wuhan University of Technology,School of Naval Architecture,Ocean and Energy Power Engineering,Wuhan 430063,China;Wuhan University of Technology,Key Laboratory of Applied Transportation Technology in Ship Power Systems,Wuhan 430063,China)

机构地区：[1]武汉理工大学船海与能源动力工程学院,武汉430063 [2]武汉理工大学船舶动力系统运用技术交通行业重点实验室,武汉430063

出　　处：《船舶工程》2023年第11期25-31,共7页Ship Engineering

基　　金：国家自然科学基金(52241102);工业和信息化部高技术船舶项目(MC-201917-C09)。

摘　　要：为研究波浪对舰船流噪声的影响,采用基于RANS方法的k-ε湍流模型,结合VOF造波方法及重叠网格技术对船体在规则波中迎浪航行时的三维非定常黏性流场进行求解,并在此基础上通过FW-H声类比方法计算船体航行时的流噪声。流场阻力系数计算结果与试验值接近,规则波波形与理论值吻合良好,验证了数值模型有效性。声场计算结果表明:波浪导致的船体各自由度运动使得舰船在规则波中航行时的流噪声与其在静水中航行时的流噪声在总声压级上有15 dB~20 dB的差距,波浪对于流噪声的影响不容忽视。所用计算方法为波浪中水面舰船流噪声研究提供了新的途径。In order to study the influence of waves on ship flow noise,the k-εturbulence model based on RANS method,combined with VOF wave making method and overlapping grid technique,is used to solve the three-dimensional unsteady viscous flow field of ship in regular waves.On this basis,the flow noise of the ship is calculated by FW-H acoustic analogy method.The calculation results of flow field resistance coefficient are close to the experimental values,and the regular wave form agrees well with the theoretical values,which verifies the validity of the numerical model.The results of sound field calculation show that the wave induced motion of the ship’s degree of freedom results in a difference of 15 dB~20 dB in the overall sound pressure level between the flow noise of the ship sailing in regular waves and the flow noise of the ship sailing in calm water.The influence of waves on the flow noise cannot be ignored.At the same time,the calculation method provides a new approach for the study of surface ships flow noise in waves.

关 键 词：规则波 流噪声 声学类比方法 FW-H 

分 类 号：U661.1[交通运输工程—船舶及航道工程]