Fig. 4.

CFD of a 3-cm swimming A. aurita. (A) Pressure around the body during a swimming cycle. Note the secondary increase in pressure at the subumbrellar surface (VI–VIII) and the resulting axial force and boost in velocity. (B) Axial force shows the corresponding locations from A. A secondary peak is shown corresponding to positive pressure of the induced flow created by the stopping vortex accumulating against the subumbrellar surface. (C) Velocity-time plot shows the corresponding locations from A. (D) Results from an empirically based technique for pressure estimation from velocity field measurements around a 3.5-cm A. aurita. (E) Velocity-time plot shows the corresponding locations from D.