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Schematic showing the boundaries of eddies in Figure 5. MA and GP represent the membrane surface at z = h/2; NC and EQ the surface at z = −h/2. ABC and GFE represent the cylindrical surface of the nanopore. Stagnation points within fluid (away from the walls) are at (a) O,D,H and (b) O,J,K. Axial symmetry implies that the eddies ABD and GFH in (a) are cross-sections of the same toroidal eddy.
