Coherent structures over riblets in turbulent boundary layer studied by combining time-resolved particle image velocimetry (TRPIV), proper orthogonal decomposition (POD), and finite-time Lyapunov exponent (FTLE)

Coherent structures over riblets in turbulent boundary layer studied by combining time-resolved particle image velocimetry (TRPIV), proper orthogonal decomposition (POD), and finite-time Lyapunov exponent (FTLE)

Time-resolved particle image velocimetry (TRPIV) experiments are performed to investigate the coherent structure's performance of riblets in a turbulent boundary layer (TBL) at a friction Reynolds number of 185. To visualize the energetic large-scale coherent structures (CSs) over a smooth surf...

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Bibliographic Details
Main Authors: Li, Shan, Jiang, Nan, Yang, Shaoqiong, Huang, Yongxiang, Wu, Yanhua
Other Authors: School of Mechanical and Aerospace Engineering
Format: Journal Article
Language:English
Published: 2020
Subjects:
Engineering::Aeronautical engineering
Finite-time Lyapunov Exponent
Proper Orthogonal Decomposition
Online Access:https://hdl.handle.net/10356/144150

Internet

https://hdl.handle.net/10356/144150

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