Fig. 5.

Wall shear stress distribution of patient-specific pulmonary vasculature, at two levels of segmentation (A and B). The hemodynamics are dependent on the number of tree generations that are segmented and the inlet-to-outlet cross-sectional area ratio. Both simulations are carried out with a zero traction outflow boundary condition. The segmentation with a greater total outlet cross-sectional area (B) develops lower pressure at the inlet and lower velocities in the terminal vessels (not indicated in figure).