Reverse Engineering of Oxygen Transport in the Lung: Adaptation to Changing Demands and Resources through Space-Filling Networks
Figure 6
O2 currents, at rest, across other gas-exchanger models.
(A) Random-walk computations for largest and smallest specimen of eight 1/8 human acini, modeled as network of acinar ducts [21], [22]. (B) Finite-element computations for Sierpinski's plane-filling curves [32], as planar models of a 1/8 and 1/128 acinus (Df = 2, [4]). Both panels also show the respective currents from the renormalization method. Inset in (B): concentration field, (c(x)−cbβa/β,)/(ca−cbβa/β,), in the 1/8 acinus (column 2 of Table 2).