Figure 7: Frequency- and space-averaged velocity PSD of the radiating body plotted versus ξ and η with a TBL excitation, with ηopt(ξ = 0) (white ◦): β > 1 with (ξopt , ηopt) (white ∗) (a); β < 1 with (ξ = 10, ηopt(ξ = 10)) (white ∗) (b).
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