Independent component analysis of streamwise velocity fluctuations in turbulent channel flows

• Published in: Theoretical and applied mechanics letters Vol. 12; no. 4; p. 100349
• Main Authors: Wu, Ting, He, Guowei
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.05.2022; Elsevier
• Subjects: Independent component analysis; Localised modes; Proper orthogonal decomposition; Third-order moment; Turbulent channel flow; Turbulent channel flow; Proper orthogonal decomposition; Localised modes; Independent component analysis; Third-order moment

•ICA is employed to decompose streamwise velocity fluctuations in turbulent channel flows into multiscale localised modes.•The height and size are introduced to quantify the spatial characteristics of ICA modes.•ICA modes are typically localised in space.•The sizes of ICA modes are multiscale and ar...