Implementing Boundary Conditions in Simulations of Arterial Flows - Archive ouverte HAL Access content directly
Journal Articles Journal of Biomechanical Engineering Year : 2013

Implementing Boundary Conditions in Simulations of Arterial Flows


Computational hemodynamic models of the cardiovascular system are often limited to finite segments of the system and therefore need well-controlled inlet and outlet boundary conditions. Classical boundary conditions are measured total pressure or flow rate imposed at the inlet and impedances of RLR, RLC, or LR filters at the outlet. We present a new approach based on an unidirectional propagative approach (UPA) to model the inlet/outlet boundary conditions on the axisymmetric Navier-Stokes equations. This condition is equivalent to a nonreflecting boundary condition in a fluid-structure interaction model of an axisymmetric artery. First we compare the UPA to the best impedance filter (RLC). Second, we apply this approach to a physiological situation, i.e., the presence of a stented segment into a coronary artery. In that case a reflection index is defined which quantifies the amount of pressure waves reflected upon the singularity.
Fichier principal
Vignette du fichier
JBE2013-preprint.pdf (515.87 Ko) Télécharger le fichier
Origin : Files produced by the author(s)
licence : CC BY - Attribution

Dates and versions

hal-01447079 , version 1 (14-03-2013)
hal-01447079 , version 2 (03-02-2023)


Attribution - CC BY 4.0



Plamen Bokov, Patrice Flaud, Aziz Bensalah, Jose-Maria Fullana, Maurice Rossi. Implementing Boundary Conditions in Simulations of Arterial Flows. Journal of Biomechanical Engineering, 2013, 135 (11), pp.111004. ⟨10.1115/1.4025111⟩. ⟨hal-01447079v2⟩
263 View
2036 Download



Gmail Facebook Twitter LinkedIn More