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physics.flu-dyn2020
Statistical behaviour of self-similar structures in canonical wall turbulence
Jinyul Hwang, Jae Hwa Lee, Hyung Jin Sung
Townsend's attached-eddy hypothesis (AEH) provides a theoretical description of turbulence statistics in the logarithmic region in terms of coherent motions that are self-similar w…
physics.flu-dyn2018
Wall-attached structures of velocity fluctuations in a turbulent boundary layer
Jinyul Hwang, Hyung Jin Sung
Wall turbulence is a ubiquitous phenomenon in nature and engineering application, yet predicting such turbulence is difficult due to its complexity. High-Reynolds-number turbulence…
physics.flu-dyn2017★ 48 cited
Streak instability in turbulent channel flow: the seeding mechanism of large-scale motions
Matteo de Giovanetti, Hyung Jin Sung, Yongyun Hwang
It has often been proposed that the formation of large-scale motion (or bulges) is a consequence of successive mergers and/or growth of near-wall hairpin vortices. In the present s…