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physics.flu-dyn2025
Bispectral decomposition and energy transfer in a turbulent jet
Akhil Nekkanti, Ethan Pickering, Oliver T. Schmidt +1
We employ bispectral mode decomposition (BMD) to investigate coherent triadic interactions and nonlinear energy transfer in a subsonic turbulent jet. BMD extracts the flow structur…
physics.flu-dyn2019
Lift-up, Kelvin-Helmholtz and Orr mechanisms in turbulent jets
Ethan Pickering, Georgios Rigas, Petrônio A. S. Nogueira +3
Three amplification mechanisms present in turbulent jets, namely lift-up, Kelvin-Helmholtz, and Orr, are characterized via global resolvent analysis and spectral proper orthogonal…