Indeed, my smaller mesh had linear triangles. And changing that to quadratic
triangles gives the same behavior (attachment).
What is the best way to circumvent this?
The reason why I wanna use the vorticity function is the following: eddies
appear all over the domain and using lines with the streamtracer filter gives
regions with either no streamlines or regions that are very much crowded by
streamlines. Therefore, having a vorticity field would be a suitable approach
to have a nice and clean visualization of the flow field.
Cheers
Am 21-May-2014 17:00:55 +0200 schrieb [email protected]:
It looks like these are quadratic triangles. I'm not sure that the compute
derivatives filter works with that type of cell. Did your smaller grid also
have quadratic cell types?
On Wed, May 21, 2014 at 9:51 AM, Andreas Hessenthaler wrote:
Hi Andy,
thanks for your quick reply. Please find the *.vtu file attached.
Cheers
Andreas
Am 21-May-2014 15:24:30 +0200 schrieb [email protected]:
Can you share your data set? It will be difficult to diagnose without that.
On Wed, May 21, 2014 at 9:06 AM, Andreas Hessenthaler wrote:
Hi there,
I have the following problem:
When I calculate the vorticity through Filters > Compute Derivatives >
Vorticity for a simple example (driven cavity in 2D) with only few elements on
an unstructured grid I get the correct values.
Though, when I do the same for a bigger domain, i.e. more elements (~80 000
nodes), I only get zero vorticity values.
The grids and values are all read in from *.vtu files, with the exact same
format, meshes are triangluar 2D (z-components set to 0.0).
I can reproduce the behavior on different versions of ParaView: 3.14.1 & 4.1.0
as well as different operating systems: Windows 7 ">
Andreas
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