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. Author manuscript; available in PMC: 2012 May 29.
Published in final edited form as: Ann Biomed Eng. 2011 Apr 21;39(8):2186–2202. doi: 10.1007/s10439-011-0313-6

FIGURE 2.

FIGURE 2

A finite element mesh and boundary conditions: the magnified view of the mesh is shown at the aneurysm for subject 10; as an inlet boundary condition, supraceliac (SC) flow waveform was prescribed using a Womersley velocity profile38; For each outlet, a three-element Windkessel (RCR) model was used to represent the downstream impedance. Rp, C, and Rd parameter values represent a proximal resistance (Rp), the resistance of the proximal arteries, capacitance (C), the compliance of the proximal arteries, and distal resistance (Rd), the resistance of the distal vessels including arterioles and capillaries.35 These RCR parameter values for each outlet were initially chosen based on flow splits, total resistance, total compliance, and measured blood pressure; the infrarenal (IR) flow waveform was used as one of the objectives to systematically tune the RCR parameter values of outlets and match the simulated results closely to the measured IR flow waveform and blood pressure.29