Xiang Liu1, Liangbo Sun2, Mingzhen Wang3, 4, Bin Li2, Lisheng Liu1, 5, *
CMES-Computer Modeling in Engineering & Sciences, Vol.123, No.1, pp. 153-183, 2020, DOI:10.32604/cmes.2020.08716
Abstract A vein model was established to simulate the periodic characteristics of blood
flow and valve deformation in blood-induced valve cycles. Using an immersed finite
element method which was modified by a ghost fluid technique, the interaction between
the vein and blood was simulated. With an independent solid solver, the contact force
between vein tissues was calculated using an adhesive contact method. A benchmark
simulation of the normal valve cycle validated the proposed model for a healthy vein.
Both the opening orifice and blood flow rate agreed with those in the physiology. Low
blood shear stress and maximum leaflet stress were… More >
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