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Dynamical mode decomposition of Gurney flap wake flow
  • ISSN号：2095-0349
  • 期刊名称：《力学快报：英文版》
  • 时间：0
  • 分类：O35[理学—流体力学;理学—力学]
  • 相关基金：supported by National Natural Science Foundation of China(Grant No.10832001); Vision Foundation of Beijing University of Aeronautics and Astronautics (Grant No.YWF-10-20-003)
中文摘要：

The present work uses dynamic mode decomposition(DMD) to analyze wake flow of NACA0015 airfoil with Gurney flap.The physics of DMD is first introduced.Then the PIV-measured wake flow velocity field is decomposed into dynamical modes.The vortex shedding pattern behind the trailing edge and its high-order harmonics have been captured with abundant information such as frequency,wavelength and convection speed.It is observed that high-order dynamic modes convect faster than low-order modes;moreover the wavel...

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期刊信息
  • 《力学快报：英文版》
  • 主管单位:中国科学院
  • 主办单位:中国科学院力学研究所、中国力学学会
  • 主编：李家春
  • 地址：北京市海淀区北四环西路15号
  • 邮编：100190
  • 邮箱：taml@cstam.org.cn
  • 电话：010-82543904
  • 国际标准刊号：ISSN：2095-0349
  • 国内统一刊号：ISSN：11-5991/O3
  • 邮发代号:82-766
  • 获奖情况:
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  • 美国化学文摘（网络版）
  • 被引量:6