水下回转体首部边界层流动稳定性及自然转捩研究进展综述  

Review of flow stability and natural transition of boundary layers onunderwater axisymmetric bodies

作　　者：刘竟成 刘建华 张永明[1,2,5] LIU Jingcheng;LIU Jianhua;ZHANG Yongming(Laboratory for High-speed Aerodynamics,Tianjin University,Tianjin 300072,China;Department of Mechanics,Tianjin University,Tianjin 300072,China;China Ship Scientific Research Center,Taihu Laboratory of DeepseaTechnological Science,Wuxi 214082,China;School of Mechanical Engineering,Tianjin University,Tianjin 300072,China;Tianjin Key Laboratory of Modern Engineering Mechanics.Tianjin 300072,China)

机构地区：[1]天津大学高速空气动力学研究室,天津300072 [2]天津大学力学系,天津300072 [3]中国船舶科学研究中心深海技术科学太湖实验室,无锡214082 [4]天津大学机械工程学院,天津300072 [5]天津市现代工程力学重点实验室,天津300072

出　　处：《实验流体力学》2024年第2期40-51,共12页Journal of Experiments in Fluid Mechanics

基　　金：国家自然科学基金项目(91952301,12072230);海南省自然科学基金项目(520LH007)。

摘　　要：水下回转体首部边界层自然转捩是重要的流动现象,与水下航行体的流动噪声密切相关。流动稳定性理论是研究边界层转捩的重要方法。本文首先介绍了水下回转体首部边界层流动稳定性研究的4个发展阶段;其次介绍了自然转捩的预测方法,包括经验和半经验两类;然后介绍了转捩位置控制常用方法,包括改变首部线型、使用超疏水材料、控制壁面温度和在表面加入抽吸;最后基于当前的研究进展,对水下回转体首部边界层转捩研究提出了建议。The laminar–turbulent transition in the bow boundary layers on underwateraxisymmetric bodies is an important phenomenon in various flows,and has important influenceon the flow noise.The flow stability theory is an important approach to study boundary layertransition.The four stages of the research progress on flow stability of the boundary layers onunderwater axisymmetric bodies are introduced.Furthermore,the prediction methods of naturaltransition are introduced,including the empirical method and the semi-empirical method.Thecommon methods to control the transition location are introduced,including changing theforebody shape,applying superhydrophobic coating,heating/cooling the wall,and blow/suctionon the wall.Finally,based on the current research status,some suggestions are provided for theresearch of the transition in boundary layers on underwater axisymmetric bodies.

关 键 词：水下回转体 自然转捩 流动稳定性 转捩预测 转捩控制 

分 类 号：O357.41[理学—流体力学]