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Figure 5


Fig. 5. Streamlines around the wing at mid down- and upstroke. Streamlines are color-coded to indicate the absolute flow speed. (A) The LEV and the TV at mid downstroke (see Fig. 2Cc). (B) The LEV and the TV at mid upstroke (see Fig. 2Cf). LEV, leading-edge vortex; TV, wing tip vortex (for further explanation, see text).