摘要
准确量化评估水动力噪声,对研制反潜水面舰船、安静型潜艇和隐身鱼雷等高性能航行体具有重要意义。由航行体型线变化、表面曲率不连续和各种扰动引起的三维非定常外流场是航行体水动力噪声的源场。分述航行体表面湍流边界层、空腔振荡、空化和粗糙度诱发水动力噪声的机理和研究进展。在分析水动力噪声数值预报难点的基础上,综述流体动力噪声计算方法研究进展。着重比较在航行体水动力噪声工程预报方面有较好前景的3种方法:声类比法、粘声分离法和声边界条件法。
It is of great importance to accurately evaluate submarine＇s hydrodynamic noise in order to de-velop anti-submarine surface warships, stealthy submarines and torpedoes as well as to optimize their hy-drodynamic and acoustic performance. Specifically, the three dimensional unsteady flow field over the vehi-cle is usually caused by the changes of profile, discontinuity of surface curvature, and various perturba-tions. In this paper, the research progress of the vehicle＇s hydrodynamic noise induced by the turbulentboundary layer on the surface, cavity oscillations, cavitation, and roughness are introduced, respectively.By analyzing the difficulties in the numerical prediction of hydrodynamic noise, different computationalmethods of flow induced noise are summarized. A comparison is finally made among three methods in par-ticular, all of which are potential schemes that can be applied in predicting vehicle＇s hydrodynamic noise.
出处
《中国舰船研究》
CSCD
北大核心
2016年第2期72-89,共18页
Chinese Journal of Ship Research
基金
国家自然科学基金资助项目(U1430236
51479041
51279038)
关键词
航行体
水动力噪声
流噪声
计算方法
underwater vehicle
hydrodynamic noise
flow noise
computational method
