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仿生鲨鱼皮复合微纳减风阻结构的仿真与制备

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  • 国家科技期刊平台
  • NETL
  • NSTL
  • 万方数据
仿生学与减阻技术的结合,为减阻开辟了重要的研究方向,在航空航天领域有着潜在的发展与应用前景.为提高降低风阻效果,本文对复合微纳减风阻结构进行了研究,基于仿生学原理,采用CFD仿真及激光微纳制造技术,建立了减阻结构组合模型,并在飞行器的大气传感器半球头体模型表面制造仿生鲨鱼皮复合微纳结构,即在仿生鲨鱼皮鳞片结构的基础上,通过激光干涉扫描二级微沟槽,以进一步提升减阻效果.采用CFD仿真与风洞实验相结合的方式,对减阻机理进行理论分析,完成了复合结构的微纳制造,减阻率最高可达10.3%.
Simulation and fabrication of bionic sharkskin composite micro-nano wind resistance reduction structure
The combination of bionics and drag reduction technology has opened up an important research direction in the field of drag reduction,and has made a significant breakthrough.For better implementation to reduce the wind resistance effect,this paper studies the composite micro-nano drag reduction structure,according to the principle of bionics,through CFD simulation combined with the laser micro-nano fabrication technology.A combined model of drag reduction structure wad established.The flight vehicle air sensor head surface with bionic sharkskin composite micro-nano structures was manufactured by laser interference scanning on the basis of the bionic sharkskin scale structures,to further improve the drag reduction performance.Through the parallel simulation and wind tunnel test,the drag reduction mechanism was theoretically analyzed,and the composite structures were manufactured with a drag reduction rate of up to 10.3%.

shark skindrag reductionwind tunnel testingCFD flow field simulationmicro-nano structurescalebionic

徐征、刘日、王天昊、迟振东、王作斌、李理

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长春理工大学 国家纳米操纵与制造国际联合研究中心,长春 130022

鲨鱼皮 减阻 风洞实验 CFD流场仿真 微纳结构 鳞片 仿生

国家重点研发计划高等学校学科创新引智计划(111计划)微纳操纵与制造项目吉林省微纳操纵与制造国际科技合作重点联合实验室项目

2016YFE0112100D1701720190702002GH

2024

10.11729/syltlx20220002

实验流体力学
中国空气动力学会

实验流体力学

CSTPCD北大核心
影响因子：0.405
ISSN：1672-9897
年,卷(期)：2024.38(2)
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