Centerlines and Boundary Layer
Posted: Mon Nov 20, 2017 3:15 pm
Dear SimVascular Developers,
I am going to simulate a cerebral aneurysm which includes a few branches with different diameters using SimVascular. While I was doing the mesh generation procedure, I faced two problems.
At First, I wanted to use the radius based meshing. When I checked the created centerlines, all the branches had their own proper centerlines; however, the aneurysm itself had none. Consequently, the quality of the mesh in the aneurysm was poor and the geometry was not detected well around it. It would be great if you could help me how to create a centerline inside the aneurysm.
Secondly, as I know, to produce the boundary layer mesh, the global edge size parameter is just needed (not the local edge size of each branch). As a result, the boundary layers of the smallest branches will have high thickness. In contrast, the largest branches will have low thickness boundary layer. As you know, having these kinds of geometries with different branch sizes is very common in vascular models. Thus, I was wondering if you could tell me how to locally adjust the boundary layers according to the diameter of each branch.
Kind Regards,
Saeid
I am going to simulate a cerebral aneurysm which includes a few branches with different diameters using SimVascular. While I was doing the mesh generation procedure, I faced two problems.
At First, I wanted to use the radius based meshing. When I checked the created centerlines, all the branches had their own proper centerlines; however, the aneurysm itself had none. Consequently, the quality of the mesh in the aneurysm was poor and the geometry was not detected well around it. It would be great if you could help me how to create a centerline inside the aneurysm.
Secondly, as I know, to produce the boundary layer mesh, the global edge size parameter is just needed (not the local edge size of each branch). As a result, the boundary layers of the smallest branches will have high thickness. In contrast, the largest branches will have low thickness boundary layer. As you know, having these kinds of geometries with different branch sizes is very common in vascular models. Thus, I was wondering if you could tell me how to locally adjust the boundary layers according to the diameter of each branch.
Kind Regards,
Saeid