JEB -- Humphrey and Mellon 210 (17): 2969 Figure IG8

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Fig. 8. Schematic (not to scale) of a simplified model of the flagellum-in-tube experiment and definition of the (x, y, z) coordinate system used for plotting the velocity components U_x, U_y and U_z. The case shown corresponds to proximal-to-distal (P $->$ D) flow, entry port A being to the left and exit port B to the right in the figure. Values for the geometrical dimensions and volumetric flow rate are given in the text. N, north; S, south; E, east; W, west.