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Time-averaged maps of the kinetic energy per unit mass and velocity vectors for the guillotine cutter. Lateral view with the cutter port on the negative side of the x-axis; 23G cutter with pressure set at 600 mm Hg. The plots correspond to the various cutting frequencies (f): (A) f = 2000 cpm; (B) f = 4000 cpm; (C) f = 5000 cpm; (D) f = 7500 cpm.
