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Figure 2


Fig. 2. Flow field from behind an eel. (A) Digital particle image velocimetry (DPIV) measurement (reproduced with permission from Tytell, 2007). (B) Simulation using the vortex sheet method. The key feature of the wake claimed by Tytell and Lauder (Tytell and Lauder, 2004), i.e. the strong lateral jet rather than a downstream jet, is consistent between the simulation and the measurement.