Name
Title | ||
|---|---|---|
Aortic coarctation simulation based on the lattice boltzmann method: benchmark results |
Abstract | ||
|---|---|---|
We investigate a patient specific blood flow simulation through a transverse aortic arch with a moderate thoracic aortic coarctation, where particular attention is paid to the blood pressure gradient through the coarctation. The challenge in this context is the complex geometry containing a stenosis, which results in complex flow patterns. The fluid is assumed to be incompressible and Newtonian. Its dynamic is usually described by an Navier-Stokes equation with appropriate boundary conditions. Instead, we modeled the problem mesoscopically by a family of BGK-Boltzmann equations those solutions reaches that of a corresponding Navier-Stokes system in a certain limit. For discretization we take advantage of lattice Boltzmann methods, which are realized within the open-source library OpenLB. A realistic transient flow profile of the cardiac output for a human at rest was used to specify the inflow boundary condition at the aortic root, whereas the outflow at the descending aorta was modeled by a pressure boundary condition. A short introduction to lattice Boltzmann methods is provided and especially the used boundary conditions are introduced in detail. The exact simulation setup is stated and the obtained results are discussed. |
Year | DOI | Venue |
|---|---|---|
2012 | 10.1007/978-3-642-36961-2_5 | STACOM |
Keywords | Field | DocType |
lattice boltzmann method,complex flow pattern,aortic coarctation simulation,inflow boundary condition,used boundary condition,benchmark result,moderate thoracic aortic coarctation,patient specific blood flow,realistic transient flow profile,aortic root,appropriate boundary condition,pressure boundary condition | Compressibility,Boundary value problem,Discretization,Aortic arch,Lattice Boltzmann methods,Mechanics,Complex geometry,Newtonian fluid,Geometry,Inflow,Mathematics | Conference |
Citations | PageRank | References |
0 | 0.34 | 1 |
Authors | ||
4 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Thomas Henn | 1 | 0 | 1.01 |
| Vincent Heuveline | 2 | 179 | 30.51 |
| Mathias J. Krause | 3 | 49 | 9.69 |
| Sebastian Ritterbusch | 4 | 6 | 1.33 |