Simulated pressure and flow rate over one cardiac cycle, mapped onto the real UV/UA geometry. See the geometry viewer for the anatomy on its own.
Field
Cardiac cycle
t = 0 ms (0% of cycle)
Pressure
00
Gestational age
25
UA length
0 cm
UV diameter
0 mm
UA diameter
0 mm
What this shows: both umbilical arteries carry the same spatially-resolved 1D pulsatile
solution (the model treats them as a symmetric pair); the vein is a single uniform colour per
instant from the lumped Windkessel relation (Section II-F of the manuscript), not an
independently modeled, spatially distributed solve. The operating point
(Rtotal, inlet pulse amplitude) shown here is the validated production fit
at gestational age 25 weeks from the manuscript's Table I.