In a minimal turbulent channel, an injected wavelet-optimal resolvent forcing mode produces transient streamwise streaks that first match the linear optimal response, then break down via spanwise-advection-driven transfer into spanwise-doubled near-wall and streamwise-broken outer structures.
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Transient growth and nonlinear breakdown of wavelet-based resolvent modes in turbulent channel flow
In a minimal turbulent channel, an injected wavelet-optimal resolvent forcing mode produces transient streamwise streaks that first match the linear optimal response, then break down via spanwise-advection-driven transfer into spanwise-doubled near-wall and streamwise-broken outer structures.