潜体水动力尾迹研究综述OA

Research on the hydrodynamic wakes of submerged bodies is essential for optimizing non-acoustic stealth and enhancing anti-submarine detection capabilities.This review addresses the types,characteristics,experimental and numerical methods,as well as the applications of SAR technology in wake detection.Stud-ies on hydrodynamic wake,dating back to the early 20th century,have focused on the complex fluid struc-tures influenced by environmental factors such as waves,temperature gradients,and water density stratifica-tion.Advances in CFD and experimental techniques have improved simulations and observations of these wakes.Hydrodynamic wakes are classified into surface waves(including"V"-shaped wakes and Bernoulli humps),turbulent wakes,and internal wave wakes,each resulting from different physical interactions.Key re-search methods include water tunnel experiments and numerical simulations,with experiments providing di-rect observations of wake formation,while simulations offer flexible analysis of complex flow fields.The combination of these methods yields comprehensive insights into wake dynamics.SAR technology has revolu-tionized wake detection in complex maritime environments by offering all-weather detection,passive modes,and wide-area coverage.However,it faces limitations related to radar parameters,sea conditions,cost,and technical challenges.Future research should focus on integrating numerical simulations,laboratory experi-ments,and field validation to enhance the detection of weak wakes using deep learning,which would improve generalizability with limited data.This will optimize submerged body designs,reduce costs,and enhance stealth performance.