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. 2020 Sep 29;11:577188. doi: 10.3389/fphys.2020.577188

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Copyright © 2020 Becsek, Pietrasanta and Obrist.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Cross-section of a leaflet through its symmetry plane from base to trailing edge. Its fluttering motion is shown throughout one period of its f_flutter = 40 Hz oscillation. The transversal deflections of the leaflet are shown to scale.