Pressure boundary conditions for blood flows
Kirill P. Gostaf , Olivier Pironneau
Chinese Annals of Mathematics, Series B ›› 2015, Vol. 36 ›› Issue (5) : 829 -842.
Pressure boundary conditions for blood flows
Simulations of blood flows in arteries require numerical solutions of fluidstructure interactions involving Navier-Stokes equations coupled with large displacement visco-elasticity for the vessels.
Among the various simplifications which have been proposed, the surface pressure model leads to a hierarchy of simpler models including one that involves only the pressure. The model exhibits fundamental frequencies which can be computed and compared with the pulse. Yet unconditionally stable time discretizations can be constructed by combining implicit time schemes with Galerkin-characteristic discretization of the convection terms in the Navier-Stokes equations. Such problems with prescribed pressure on the walls will be shown to be efficient and accurate as an approximation of the full fluid structure interaction problem.
Fluid-structure interaction / Compliant walls / Finite element method / Navier-Stokes equations / Blood flow
| [1] |
Begue, C., Conca, C., Murat, F. and Pironneau O., Les equations de Stokes et de Navier-Stokes avec conditions aux limites sur la pression, Nonlinear Partial Differential Equations and Their Applications, H. Brezis, J. Lions (eds.), College de France, Vol. IX, Pitman, RNM Longman, Boston, 1988, 179–264. |
| [2] |
|
| [3] |
|
| [4] |
|
| [5] |
|
| [6] |
|
| [7] |
|
| [8] |
|
| [9] |
|
| [10] |
|
| [11] |
|
| [12] |
|
| [13] |
|
| [14] |
|
| [15] |
|
| [16] |
|
| [17] |
|
| [18] |
Gostaf, K., Pironneau O. and Roux, F. X., Finite element analysis of multi-component assemblies: CADbased domain decomposition, DDM 14 Proc., to appear. |
| [19] |
|
| [20] |
|
| [21] |
|
| [22] |
|
| [23] |
|
| [24] |
|
| [25] |
|
| [26] |
|
| [27] |
|
| [28] |
|
| [29] |
|
| [30] |
|
| [31] |
Rannacher, R., Incompressible Viscous Flow, Encyclopedia Mecanicae, E. Stein (ed.), Wiley, New York, 2004. |
| [32] |
Rappaz, J. and Flotron, S., Numerical conservation schemes for convection-diffusion equations, to appear. |
| [33] |
|
| [34] |
|
| [35] |
Thiriet, M., Biomathematical and biomechanical modeling of the circulatory and ventilatory systems, Control of Cell Fate in the Circulatory and Ventilatory Systems, Vol. 2, Math and Biological Modeling, Springer-Verlag, New York, 2011. |
| [36] |
|
| [37] |
|
/
| 〈 |
|
〉 |