“…At high Reynolds number, one example of fluid-structure interactions with 2D objects that has attracted researchers' attention is the flapping of flags 20,21 . Relatively less work, though, has focused on the behavior of 2D semiflexible sheets in low-Reynoldsnumber flows, despite the increasing relevance of transition metal dichalogenides, graphene 22 , graphene oxide 23,24 , and 2D polymers 25,26 in advanced technologies. Xu and Green 27,28 looked at sheets under shear and biaxial extensional flow, and Babu and Stark 29 have studied tethered sheets in fluids, confirming predicted scaling laws of Frey and Nelson 30 regarding thermal fluctuations in the presence of hydrodynamic interactions.…”