A multi-scale model of gas transport in the lung to study heterogeneous lung ventilation during the multiple-breath washout test
Fig 2
Ventilation lumped parameter model schematics.
(a) Network of pipe- and trumpet-like elements used for the upper and lower airways, respectively. (b) Corresponding lumped parameter model composed of resistances for the conducting airways Rij and for the trumpet lobule Rlb and compliance elements which relate the trans-lobular pressure to the volume of the trumpet lobule Vlb(t) (see Eq 7).