Comparing meshes : Duplicate vs No-duplicate
Posted: Fri Jun 05, 2015 3:05 am
Hi,
I am trying to create a couple of meshes using RSurf mesher. In one case, I am using the duplicate nodes at a surface feature of GID and in the other case, I chose not to duplicate a particular surface. In both cases I use the same element size (specifically, I am trying to generate tetrahedral mesh). Would the mesh created by RSurf mesher be same in both these cases (except for the fact the nodes are duplicated in one case and not in the other case)? Furthermore, would the mesh geometry change if I use a linear tetrahedral mesh or a quadratic mesh if I keep size of the elements the same? It doesn't seem to be different but for most cases but it appears to change for some cases. Not sure how the algorithm is adopted by RSurf.
I am trying to create a couple of meshes using RSurf mesher. In one case, I am using the duplicate nodes at a surface feature of GID and in the other case, I chose not to duplicate a particular surface. In both cases I use the same element size (specifically, I am trying to generate tetrahedral mesh). Would the mesh created by RSurf mesher be same in both these cases (except for the fact the nodes are duplicated in one case and not in the other case)? Furthermore, would the mesh geometry change if I use a linear tetrahedral mesh or a quadratic mesh if I keep size of the elements the same? It doesn't seem to be different but for most cases but it appears to change for some cases. Not sure how the algorithm is adopted by RSurf.