Patient-Specific Computer Modeling of Blood Flow in Cerebral Arteries With Aneurysm and Stent
[摘要] This thesis focuses on special arterial fluid mechanics techniquesdeveloped for patient-specific computer modeling of blood flow in cerebral arteries with aneurysm and stent. These techniques are used in conjunction with the core computational technique, which is the space–time version of thevariational multiscale (VMS) method and is called ;;DST/SST-VMST.” The special techniques include using NURBS for the spatial representation of the surface over which the stent mesh is built, mesh generation techniques for both the finite-and zero-thickness representations of the stent, techniques for generating refined layers of mesh near the arterial and stent surfaces, and models for representing double stent. We compute the unsteady flow patterns in the aneurysm and investigate how those patterns are influenced by the presence of single anddouble stents. We also compare the flow patterns obtained with the finite- and zero-thickness representations of the stent.
[发布日期] [发布机构] Rice University
[效力级别] fluid [学科分类]
[关键词] [时效性]