平板湍流边界层测量与脉冲射流执行器研发-(5819)

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1、AbstractDNS(DirectNumericalSimulation)aboutthedragreductioneffectofthepulsedjetactuatorfortheturbulentboundarylayerisshown.TheturbulentboundarylayercurvewaschoseatanoncomingvelocityU=10m/s,andthepulsedjetcomefromtheactuatorwiththeinputvoltage2volt,thatgotthe54%dragreductionefficiency.Keywo

2、rds:turbulentboundarylayer,dragreduction,pulsed-jetactuator-III-万方数据目录目录摘要............................................................................................................................IABSTRACT....................................................................................

3、..............................II第1章绪论..............................................................................................................11.1课题来源............................................................................................................11.2课题背景及意义.................

4、...............................................................................11.3国内外发展现状................................................................................................21.3.1湍流边界层及其拟序结构.....................................................................21.3.2湍流边界层控制......

5、...............................................................................71.4主要研究内容....................................................................................................9第2章实验方案及其优化........................................................................................10

6、2.1引言..................................................................................................................102.2实验设备..........................................................................................................102.2.1风洞................................................

7、.......................................................102.2.2热线风速仪...........................................................................................122.2.3粒子成像测速法..................................................................................