Hi,
Normally I used triangular meshes to simulate thin films on cantilever beams. Because of the very high aspect ratios I 've tried to use a mapped mesh for the rectangular geometry. The amount of mesh elements decreases drastically while the result is nearly similar.
Now I've got two questions about the simulation-time:
a) If i compare the simulation-time between triangular and mapped meshes with the same geometry and amount of elements the simulation with a mapped mesh needs nearly twice as long as the other one. Why is that? I assume Comsol calculates internally with triangular meshes and therefore with the double amount of elements for a mapped mesh. Is my assumption correct?
b) The same problem in 3D needs much much more callculation-time for a mapped mesh than for a tetrahedral mesh. Why is that?
Thank you
Normally I used triangular meshes to simulate thin films on cantilever beams. Because of the very high aspect ratios I 've tried to use a mapped mesh for the rectangular geometry. The amount of mesh elements decreases drastically while the result is nearly similar.
Now I've got two questions about the simulation-time:
a) If i compare the simulation-time between triangular and mapped meshes with the same geometry and amount of elements the simulation with a mapped mesh needs nearly twice as long as the other one. Why is that? I assume Comsol calculates internally with triangular meshes and therefore with the double amount of elements for a mapped mesh. Is my assumption correct?
b) The same problem in 3D needs much much more callculation-time for a mapped mesh than for a tetrahedral mesh. Why is that?
Thank you