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Optimal disturbance in a flow duct with a lined wall

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Academic year: 2021

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Figure

Fig. 1. Geometry of the lined flow duct. The three bullet points represent pressure sensors.
Fig. 3. (a) Energy gain versus the time horizon. The optimal gain is plotted in solid line
Fig. 4. Spatial distribution of the optimal pressure perturbation at the optimal time horizon along the bottom wall (left: upstream rigid wall, middle: lined wall, right: downstream rigid wall
Fig. 6. (a) Time evolution gain of the optimal initial perturbation ϕ opt 0 . (b) Pressure measured on the liner at x = x L .
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