论文和技术资料

This work deals with the computer simulation of the blood flow, the arterial wall deformation and their 3D bidirectional interaction, including initial stresses and root displacements. The flow is laminar and steady with flexible walls modeled with a hyperelastic Demiray material model.

Poiseuille formula is used to check the bidirectional interaction. 2D axisymmetric and full 3D models have been used and some considerations are made to the weak contribution of the boundary load interface. Initial stresses consider the fact that geometric dimensions corresponds to in vivo measured arteries, normally under diastolic pressure. This way deformations are realistic and not extremely large. Finally, upper aorta is modeled as a torus with 3 cylinders (ramifications) and reasonable results are obtained.