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Physiological data for the pressure at the inlet and at the outlet were obtained. Ultrasound velocity measurements were performed at different locations along the compliant tube. Velocity data was collected. Both the pressure and the velocity are in excellent agreement with the physiological data corresponding to the abdominal aorta. (A) Inlet and outlet pressure (jpg) (jpg) (B) Dr. Hartley taking a measurement of the (inlet) velocity with an ultrasound probe (jpg) (C) Data aquisition: Inlet Pressure (blue), Outlet Pressure (red) and Velocity (at the middle point (lengthwise and radius-wise) (green) (jpg) (D) Probe catheter at the outlet (jpg) (E) Comparison between measurements and numerical simulations show excellent agreement. The eps file shows a comparison between the measured (asterix) and numerically calulcated (solid line) axial velocity at the midpoint of the tube. (eps) |