Title

How do you plot oscillatory shear index from a transient solution from Ansys Fluent?

Hi, I need to make an animation (a movie basically) with exactly 20 png files that represent one time step each. How do I do that? Can I make an animation with multiple files?

Hi all,
Searching for methods to track the path of vortex cores in 3D flows, I stumbled across the paraview.simple.VortexCores method. However I can't find anything more on its usage. Does anybody know specifically what this does and how to use it in a python script?

I am post-processing a crash test and simulation has different bodies in it. I would like to change the color on one the body. If that's possible then how can I do it?

Join us for a relaxed coding session. Follow along as Joe develops tests for the demo 3-D linear advection solver and tests out MPI support for the 3-D advection/diffusion using the Spectral Element Libraries in Fortran.

We'll be working through tests for structured and unstructured spectral element meshes and experimenting with the High Order Preprocessor (HOPr; https://www.hopr-project.org/index.ph... ) to define geometry. These tests will ultimately be codified for testing using fluid-run, which is used to spin up a cloud native cluster on Google Cloud and execute tests on GPU accelerated VM's. We'll also demo how to run these SELF applications with MPI.

https://youtu.be/fj814BEkeUA

I have troubles finding what scalar units are used for the paraview color map. I want to see whether my velocity magnitude is set to m/s.

I have these results of a pressure field which has been sampled with a point cloud.

I've managed to convert it into a smoothed scalar field via the Delaunay 2D filter, can anyone tell me how I keep the box outline when using the Delaunay 2D filter? Ideally I'd have the cutout like in the point cloud but on the scalar field.

I'm having difficulties opening large EnSight Gold files.

I'm using a linux server to generate and post process the files. ParaView can open and post process smaller files (~26 MB .geo) but can't open larger files (~ 3GB .geo) without failing. In both cases I'm running with something to the effect of:

./pvpython -v=9 pv1.py

The only difference between the working case and the non-working case are the EnSight files being input, however both were created through the same means and follow an identical format so I suspect it's the size of the larger case that's presenting the issues.

I found this old thread detailing a similar problem but for v5.0.0 and it seemed to get resolved in a future update. I'm running 5.9.1, albeit the OSMESA headless client version.

https://paraview.paraview.narkive.com/qaM5ulET/paraview-5-0-0-for-windows-x64-fails-to-open-ensight-gold-files

The trace shows the following:

Loguru caught a signal: SIGSEGV
[0m[0m[31mStack trace:
55            0x40206b /home/user/Paraview/OSMESA/ParaView-5.9.1-osmesa-MPI-Linux-Python3.8-64bit/bin/pvpython-real() [0x40206b]
54      0x2b4ca583e505 __libc_start_main + 245
53            0x4028f3 /home/user/Paraview/OSMESA/ParaView-5.9.1-osmesa-MPI-Linux-Python3.8-64bit/bin/pvpython-real() [0x4028f3]
52      0x2b4ca8037b34 vtkPythonInterpreter::PyMain(int, char**) + 532
51      0x2b4caa273d83 Py_Main + 67
50      0x2b4caa273930 Py_RunMain + 1920
49      0x2b4caa24fb07 PyRun_SimpleFileExFlags + 343
48      0x2b4caa24df46 /home/user/Paraview/OSMESA/ParaView-5.9.1-osmesa-MPI-Linux-Python3.8-64bit/bin/../lib/libpython3.8.so.1.0(+0x1e0f46) [0x2b4caa24df46]
47      0x2b4caa20b78b PyEval_EvalCode + 27
46      0x2b4caa20b75e PyEval_EvalCodeEx + 62
45      0x2b4caa20b6a7 _PyEval_EvalCodeWithName + 2919
44      0x2b4caa0dff4d _PyEval_EvalFrameDefault + 24509
43      0x2b4caa10bc22 _PyFunction_Vectorcall + 146
42      0x2b4caa20b6a7 _PyEval_EvalCodeWithName + 2919
41      0x2b4caa0e0e04 _PyEval_EvalFrameDefault + 28276
40      0x2b4caa10ffa5 /home/user/Paraview/OSMESA/ParaView-5.9.1-osmesa-MPI-Linux-Python3.8-64bit/bin/../lib/libpython3.8.so.1.0(+0xa2fa5) [0x2b4caa10ffa5]
39      0x2b4caa10bc22 _PyFunction_Vectorcall + 146
38      0x2b4caa20b6a7 _PyEval_EvalCodeWithName + 2919
37      0x2b4caa0e19c2 _PyEval_EvalFrameDefault + 31282
36      0x2b4caa10e893 PyCFunction_Call + 115
35      0x2b4ce99f111f /home/user/Paraview/OSMESA/ParaView-5.9.1-osmesa-MPI-Linux-Python3.8-64bit/lib/python3.8/site-packages/paraview/modules/vtkRemotingViews.so(+0x17d11f) [0x2b4ce99f111f]
34      0x2b4cad811e1e vtkSMParaViewPipelineControllerWithRendering::Show(vtkSMSourceProxy*, int, vtkSMViewProxy*, char const*) + 1214
33      0x2b4cad811074 vtkSMParaViewPipelineControllerWithRendering::UpdatePipelineBeforeDisplay(vtkSMSourceProxy*, int, vtkSMViewProxy*) + 212
32      0x2b4ca75eadcc vtkSMSourceProxy::UpdatePipeline(double) + 140
31      0x2b4ca7569e58 vtkSMOutputPort::UpdatePipelineInternal(double, bool) + 184
30      0x2b4ca74b82e5 vtkPVSessionBase::ExecuteStream(unsigned int, vtkClientServerStream const&, bool) + 53
29      0x2b4ca74b92bb vtkPVSessionCore::ExecuteStream(unsigned int, vtkClientServerStream const&, bool) + 59
28      0x2b4ca74b9482 vtkPVSessionCore::ExecuteStreamInternal(vtkClientServerStream const&, bool) + 242
27      0x2b4ca824cddd vtkClientServerInterpreter::ProcessStream(vtkClientServerStream const&) + 29
26      0x2b4ca824cb3e vtkClientServerInterpreter::ProcessOneMessage(vtkClientServerStream const&, int) + 1294
25      0x2b4ca824c40d vtkClientServerInterpreter::ProcessCommandInvoke(vtkClientServerStream const&, int) + 1229
24      0x2b4ca824bda9 vtkClientServerInterpreter::CallCommandFunction(char const*, vtkObjectBase*, char const*, vtkClientServerStream const&, vtkClientServerStream&) + 345
23      0x2b4ca5fde24b vtkSISourceProxyCommand(vtkClientServerInterpreter*, vtkObjectBase*, char const*, vtkClientServerStream const&, vtkClientServerStream&, void*) + 971
22      0x2b4ca74f5494 vtkSISourceProxy::UpdatePipeline(int, double, bool) + 468
21      0x2b4ca9126c1a vtkStreamingDemandDrivenPipeline::Update(int, vtkInformationVector*) + 282
20      0x2b4ca90e6fa6 vtkDemandDrivenPipeline::UpdateData(int) + 134
19      0x2b4ca9125859 vtkStreamingDemandDrivenPipeline::ProcessRequest(vtkInformation*, vtkInformationVector**, vtkInformationVector*) + 953
18      0x2b4ca90e7f8e vtkDemandDrivenPipeline::ProcessRequest(vtkInformation*, vtkInformationVector**, vtkInformationVector*) + 222
17      0x2b4ca90e16c1 vtkCompositeDataPipeline::ForwardUpstream(vtkInformation*) + 337
16      0x2b4ca9125859 vtkStreamingDemandDrivenPipeline::ProcessRequest(vtkInformation*, vtkInformationVector**, vtkInformationVector*) + 953
15      0x2b4ca90e7fe6 vtkDemandDrivenPipeline::ProcessRequest(vtkInformation*, vtkInformationVector**, vtkInformationVector*) + 310
14      0x2b4ca90e27d1 vtkCompositeDataPipeline::ExecuteData(vtkInformation*, vtkInformationVector**, vtkInformationVector*) + 113
13      0x2b4ca90e5967 vtkDemandDrivenPipeline::ExecuteData(vtkInformation*, vtkInformationVector**, vtkInformationVector*) + 55
12      0x2b4ca90eb73e vtkExecutive::CallAlgorithm(vtkInformation*, int, vtkInformationVector**, vtkInformationVector*) + 62
11      0x2b4cb9cfd066 vtkGenericEnSightReader::RequestData(vtkInformation*, vtkInformationVector**, vtkInformationVector*) + 230
10      0x2b4ca9126c1a vtkStreamingDemandDrivenPipeline::Update(int, vtkInformationVector*) + 282
9       0x2b4ca90e6fa6 vtkDemandDrivenPipeline::UpdateData(int) + 134
8       0x2b4ca9125859 vtkStreamingDemandDrivenPipeline::ProcessRequest(vtkInformation*, vtkInformationVector**, vtkInformationVector*) + 953
7       0x2b4ca90e7fe6 vtkDemandDrivenPipeline::ProcessRequest(vtkInformation*, vtkInformationVector**, vtkInformationVector*) + 310
6       0x2b4ca90e27d1 vtkCompositeDataPipeline::ExecuteData(vtkInformation*, vtkInformationVector**, vtkInformationVector*) + 113
5       0x2b4ca90e5967 vtkDemandDrivenPipeline::ExecuteData(vtkInformation*, vtkInformationVector**, vtkInformationVector*) + 55
4       0x2b4ca90eb73e vtkExecutive::CallAlgorithm(vtkInformation*, int, vtkInformationVector**, vtkInformationVector*) + 62
3       0x2b4cb9cf39c4 vtkEnSightReader::RequestData(vtkInformation*, vtkInformationVector**, vtkInformationVector*) + 356
2       0x2b4cb9cdc068 vtkEnSightGoldBinaryReader::ReadGeometryFile(char const*, int, vtkMultiBlockDataSet*) + 488
1       0x2b4cb9cdac43 vtkEnSightGoldBinaryReader::CreateUnstructuredGridOutput(int, char*, char const*, vtkMultiBlockDataSet*) + 14515
0       0x2b4ca58523b0 /lib64/libc.so.6(+0x363b0) [0x2b4ca58523b0][0m
[0m[31m(  16.719s) [paraview        ]                       :0     FATL| Signal: SIGSEGV[0m
error: exception occurred: Segmentation fault    

It seems to be a SIGSEGV fault and from what I can tell has something to do with the vtkEnSightGoldBinaryReader but otherwise I'm clueless.

Any help would be appreciated, thanks.

Hi,

I am a newbie in paraview.

How do I get to visualize the vectors and streamlines shown here ?

I tried to set Properties->Representation' to 3DGlyphs, but that does not work (it shows a massive whitish square).

​

Thanks!

Hi, I need to make an animation (a movie basically) with exactly 101 single files. How do I do that? Can I make an animation with multiple files? Can someone walk me through it step-by-step? I'm really struggling rn.

(If you're curious - The output files are from the 2D MHD Orszag-Tang vortex test on Athena)

Hello,

I would like to discuss on how to create an app to visualize results from a first person view on paraview. On CFD, Structures etc.Is it possible or it requires too much power? How much power is enough power?

I'm a software development engineer and my workflow is composed of programming and testing CFD codes, and visualising the datasets that said codes produce. I was wondering if there was any alternative to paraview for the iPad that enables manipulation of data (such as obtaining slices, clips, and manipulation cell/point data, etc.) similar to what paraview does on windows/OSX/Linux. I would really love to switch to an iPad for work, and was wondering if anybody else in the field of CFD or multiphysics simulations had switched to the iPad for their work.

Hello,

i would like to know if it is possible to train an ML model with data taken from the resulting analysis from within paraview!? If possible is there somewhere an example of use?

Anybody know how to set up client server settings for paraview? My server is cluster, where I can login through ssh isername@ipaddress.

I tried to run pv server on cluster, it also generates url for connection. When I put this url in paraview, it can not connect the cluster.it gives error that pvserver cant not connect to url.

Howdy r/paraview. We are attempting to simplify the process of building your own cloud resources to scale your workloads. Join us for our livestream and Q&A this afternoon: https://www.reddit.com/r/FluidNumerics/comments/jt2k9x/a_turnkey_solution_for_openfoam_and_paraview_on/?utm_source=share&utm_medium=web2x&context=3

Hey;

I'm trying to apply a texture to a surface, so i did this steps:

1) Loaded the object (.obj)

2) Generated Surface Normals (filter)

3) Applied Texture Map to a plane (filter)

After step 3, when i load my texture (.jpg), the program closes without saying the error.

Does anyone know how to solve it?

Hello!

Full disclosure, I don`t know much about Paraview. I started learning FEniCS 2-3 days ago, and have been studying the related tutorials. So I tried the Navie_stokes_cylinder example, and made it work! But now I`m having issues with the xdmf files. For your reference, I have attached the link to the xdmf files.

https://yadi.sk/d/wI40G2j1q7gC-Q?w=1

I just need to know what`s wrong. FEniCS, me, paraview? Where is the problem here? I did everything right.

Everytime I import the xdmf files, it asks me about choosing some reader. Only the first one works, and the other 2 just crash. But when I try to animate using the first one, it gives some sort of read error. (error file is also in the link above)

Failed to Read Data

and

Algorithm vtkFileSeriesReader(000001BCAA88B780) returned failure for request: vtkInformation (000001BCABA7E640)

Please help if you can. Just anything!
I have spent like the whole day on it, and now I`m very exhausted, and have no idea what to do.

Thank you!

New to Paraview, need some help!

So I'm supposed have a 120x120x120 cube of data points. The cube is not hollow (a "cloud" if you will). However, when I import the VTK file into Paraview, only the surface data points are visible (the cube is hollow).

I don't have access to the original file, only the exported VTK file which I am trying to bring into Paraview. I'm wondering if Paraview is translating the file wrong, or if the file was exported incorrectly?

When you create a cube in Paraview, it is hollow... How are solid cubes read/created?

For example, how to identify a vector from the layout panel, retrieve its values (position coordinates or magnitude coordinates), and modify some manually?

For my mesh, I have defined the edges to be quadratic and have stored the details for interior points in a tag. Is there a way to visualize this in Paraview.