FHPOD and local stability analysis show swirl-switching at Strouhal 0.13 as an intrinsic instability of bent-pipe mean flow, with bend and downstream modes arising from distinct mechanisms.
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Disentangling coherent structures and the origin of swirl-switching
FHPOD and local stability analysis show swirl-switching at Strouhal 0.13 as an intrinsic instability of bent-pipe mean flow, with bend and downstream modes arising from distinct mechanisms.