Simulations of time harmonic blood flow in the Mesenteric artery: comparing finite element and lattice Boltzmann methods.
BACKGROUND
Systolic blood flow has been simulated in the abdominal aorta and the superior mesenteric artery. The simulations were carried out using two different computational hemodynamic methods: the finite element method to solve the Navier Stokes equations and the lattice Boltzmann method.


RESULTS
We have validated the lattice Boltzmann method for systolic flows by comparing the velocity and pressure profiles of simulated blood flow between methods. We have also analyzed flow-specific characteristics such as the formation of a vortex at curvatures and traces of flow.


CONCLUSIONS
The lattice Boltzmann Method is as accurate as a Navier Stokes solver for computing complex blood flows. As such it is a good alternative for computational hemodynamics, certainly in situation where coupling to other models is required.
Axner
Lilit
L
Section Computational Science, Laboratory for Computing, System Architecture and Programming, Faculty of Science, University of Amsterdam, Science Park 107, 1098 XG Amsterdam, The Netherlands. labraham@science.uva.nl
Hoekstra
Alfons G
AG
Jeays
Adam
A
Lawford
Pat
P
Hose
Rod
R
Sloot
Peter M A
PM
D000465:Algorithms; D001012:Aorta, Abdominal / Q000033:anatomy & histology / Q000502:physiology; D001698:Biomedical Engineering; D001783:Blood Flow Velocity / Q000502:physiology; D003198:Computer Simulation; D020342:Finite Element Analysis; D006439:Hemodynamics; D006801:Humans; D008638:Mesenteric Arteries / Q000033:anatomy & histology* / Q000502:physiology; D008955:Models, Cardiovascular; D015233:Models, Statistical; D012984:Software; D013599:Systole; D013997:Time Factors