152 citations · 352 across the 10 of their papers we have counts for
11 papers
Low-Shapiro hydrostatic reconstruction technique for blood flow simulation in large arteries with varying geometrical and mechanical properties
A. R. Ghigo, O. Delestre, J. -M. Fullana +1
The purpose of this work is to construct a simple, efficient and accurate well-balanced numerical scheme for one-dimensional (1D) blood flow in large arteries with varying geometri…
Linear and nonlinear viscoelastic arterial wall models: application on animals
Arthur Ghigo, Xiao-Fei Wang, Ricardo Armentano +2
This work deals with the viscoelasticity of the arterial wall and its influence on the pulse waves. We describe the viscoelasticity by a non-linear Kelvin-Voigt model in which the…
Fluid friction and wall viscosity of the 1D blood flow model
Xiao-Fei Wang, Shohei Nishi, Mami Matsukawa +3
We study the behavior of the pulse waves of water into a flexible tube for application to blood flow simulations. In pulse waves both fluid friction and wall viscosity are damping…
A shallow water with variable pressure model for blood flow simulation
Olivier Delestre, Arthur Ghigo, Jose-Maria Fullana +1
We performed numerical simulations of blood flow in arteries with a variable stiffness and cross-section at rest using a finite volume method coupled with a hydrostatic reconstruct…
Drop impact on a solid surface: short time self-similarity
Julien Philippi, Pierre-Yves Lagrée, Arnaud Antkowiak
The early stages of drop impact onto a solid surface are considered. Detailed numerical simulations and detailed asymptotic analysis of the process reveal a self-similar structure…
Continuum simulation of the discharge of the granular silo: a validation test for the mu(I)-visco-plastic flow law
L. Staron, P. -Y. Lagrée, S. Popinet
Using both a continuum Navier-Stokes solver, with the mu(I)-flow-law implemented to model the viscous behavior, and the discrete Contact Dynamics algorithm, the discharge of granul…
Verification and comparison of four numerical schemes for a 1D viscoelastic blood flow model
Xiaofei Wang, Jose-Maria Fullana, Pierre-Yves Lagrée
A reliable and fast numerical scheme is crucial for the 1D simulation of blood flow in compliant vessels. In this paper, a 1D blood flow model is incorporated with a Kelvin-Voigt v…
A "well-balanced" finite volume scheme for blood flow simulation
Olivier Delestre, Pierre-Yves Lagrée
We are interested in simulating blood flow in arteries with a one dimensional model. Thanks to recent developments in the analysis of hyperbolic system of conservation laws (in the…
A well-balanced finite volume scheme for 1D hemodynamic simulations
Olivier Delestre, Pierre-Yves Lagrée
We are interested in simulating blood flow in arteries with variable elasticity with a one dimensional model. We present a well-balanced finite volume scheme based on the recent de…
Modelling the human pharyngeal airway: validation of numerical simulations using in vitro experiments
Franz Chouly, Annemie Van Hirtum, Pierre-Yves Lagrée +2
In the presented study, a numerical model which predicts the flow-induced collapse within the pharyngeal airway is validated using in vitro measurements. Theoretical simplification…
Stationary shear flows of dense granular materials : a tentative continuum modelling
Christophe Josserand, Pierre-Yves Lagree, Daniel Lhuillier
We propose a simple continuum model to interpret the shearing motion of dense, dry and cohesion-less granular media. Compressibility, dilatancy and Coulomb-like friction are the th…