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physics.flu-dyn2024
Stabilising nonlinear travelling waves in pipe flow using time-delayed feedback
Tatsuya Yasuda, Dan Lucas
We demonstrate the first successful non-invasive stabilisation of nonlinear travelling waves in a straight cylindrical pipe using time-delayed feedback control (TDF) working in var…
physics.flu-dyn2024
Dynamically relevant recurrent flows obtained via a nonlinear recurrence function from two-dimensional turbulence
Edward M. Redfern, Andrei L. Lazer, Dan Lucas
This paper demonstrates the efficient extraction of unstable recurrent flows from two-dimensional turbulence by using nonlinear triads to diagnose recurrence in direct numerical si…