Postprocessing steps of Fluent files (.cas.h5 and .dat.h5 )

SKSoni · October 26, 2024, 8:59am

Dear All,
I am new in postprocessing for Ansys fluent flies ( .cas.h5 and .dat.h5 ) in ParaView.

While uploading the files in Paraview I am getting following errors:

ERROR: In vtkExecutive.cxx, line 730

Can anyone suggest processing these files in Paraview?

Thanks.

cory.quammen · October 27, 2024, 7:04pm

Please post the full error message. If possible, please share example data files to help debug.

SKSoni · October 28, 2024, 6:57pm

Dear @cory.quammen
Thanks for addressing this issue.

Here are the files for .cas.h5 and .dat.h5 that I want to import into Paraview.

https://www.dropbox.com/scl/fi/xyu3erw7n8una82a1n9j4/0142_1001_volume-1.cas.h5?rlkey=igrcis4jo7fljxh7rhu1b719z&st=5wejb88q&dl=0

https://www.dropbox.com/scl/fi/kfgz8nv3k10ppgdmrazxq/0142_1001_volume-1-0.080000.dat.h5?rlkey=y5o1zqusf1lh8jvi80nba3ioz&st=5g6s8wrn&dl=0

Thanks
SK

mwestphal · October 29, 2024, 10:36am

Hi @SKSoni

I had to rename your .dat.h5 so that it matches the .cas.h5 name and then ParaView 5.13.1 is able to open your file without issues:

SKSoni · October 29, 2024, 4:30pm

Hello @mwestphal
Thanks for your kind support.

However, can you please tell mention the initial steps of importing the file, such as file loader and contour plotting steps.

Thanks
SK

mwestphal · October 30, 2024, 5:54am

File → Open → 0142_1001_volume-1.cas.h5 → Apply

contour plotting steps.

There is no contour computation, this is just your file

SKSoni · October 30, 2024, 7:14am

Thanks for your quick response.
I have also followed the same steps and it has no error for .cas.h5 file. However, when it comes for .dat.h5 file, then the following error is showing.

################
ERROR: In vtkTecplotReader.cxx, line 2159
vtkTecplotReader (000001C0EB302C30): D:\acad-diat\IITK-Project\model-sample-run\modelsample_files\dp0\FFF\Fluent\0142_1001_volume-1-0.040000.dat.h5: The record type �HDF found in the file is unknown.
################

Actually, .dat.h5 file contains the fluent solution at particular time step.

Kindly suggest to fix it for dat.h5 ansys fluent file.

mwestphal · October 30, 2024, 7:14am

The .dat.h5 is not supposed to be open directly, it is a companion file to the .cas.h5

SKSoni · October 30, 2024, 10:12am

Here is the only one .cas.h5 file is generated during fluent output.

Please correct me, in case i want to analyse the result for any result of .dat.h5 file then I need to import both .cas.h5 and .dat.h5 file together.

For example, from attached screenshot, for results visualization of dat file [ 0142_1001_volume-1-0.090000.dat.h5 ], i have to import the cas file 0142_1001_volume-1.cas.h5 along with it in paraview.

Please suggest!

mwestphal · October 30, 2024, 10:14am

Your combination of .cas.h5 and .dat.h5 seems to be not supported of the Fluent CFF reader of ParaView yet I’m afraid.

SKSoni · October 30, 2024, 11:40am

I am using Ansys 24R1.
Can you suggest the compatible files of Fluent outputs that can be supported while plotting in Paraview.