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post-processing of the .cas.h5 files saved by fluent 2020

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Old   June 1, 2020, 06:21
Default post-processing of the .cas.h5 files saved by fluent 2020
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志新高(Zhixin Gao)
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Hi,

I did some transient work using fluent 2020, and the format of the autosave files was .cas.h5.
When I planed to do some post-processing work using CFDpost, I found that the .cas.h5 files could not be opened. I also tested Tecplot, it could not open the file either.
So I was wondering how can I do the post-process work (Besides save the file as .cas).
Any help will be great.

Thanks.
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Old   June 2, 2020, 10:42
Default Case File
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Case file only contains mesh and setup. Results are in data files. CFDPost may or may not be able to load HDF, but I'd expect Ansys to have made it possible. Else, write data file as dat.gz or export cdat from Fluent.
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Old   June 5, 2020, 02:54
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Quote:
Originally Posted by vinerm View Post
Case file only contains mesh and setup. Results are in data files. CFDPost may or may not be able to load HDF, but I'd expect Ansys to have made it possible. Else, write data file as dat.gz or export cdat from Fluent.
Thanks for your reply. Now I have saved new files as the older format. Just wonder why Cfdpost does not support .dat.h5 format.
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Old   September 15, 2020, 15:43
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It's because EnSight does the job instead of CFDPost.
CFD-Post is coming to its end I believe, EnSight was bought just to fill this gap.
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Old   September 15, 2020, 22:55
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I've faced the same problem. So, that I know, you have two options, if your simulations don't take too long to finish, do them again and create a report for CFD post, or, you can load them in fluent and save in .cas, manually, wich is painfully boring.
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Old   March 28, 2021, 01:59
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Quote:
Originally Posted by Diconico View Post
I've faced the same problem. So, that I know, you have two options, if your simulations don't take too long to finish, do them again and create a report for CFD post, or, you can load them in fluent and save in .cas, manually, wich is painfully boring.
I'm facing the same problem in Ansys 2021 R1 and i want to view result files in techplot but it is not supporting .h5 cas and dat files.
Is there a way to save the result files in simple cas and data files?
please help.
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Old   April 13, 2021, 22:00
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Go to the File->Preferences in the “general” section, change the “Default Format for I/O” from “CFF” to “Legacy”

And then when you write the .cas and .dat files make sure to select the “.cas and .dat” option, and not the CFF format with .cas.h5 and .dat.h5
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Old   April 20, 2021, 15:56
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At Tecplot we've just released our Tecplot 360 2021 R1 Beta which includes support for the Ansys Fluent CFF (.cas.h5/.dat.h5) format. The official release should happen by mid-May 2021.

Visit www.tecplot.com and go to the "My Tecplot" link to download the Beta. This requires a portal account, which is free.

Let me know how the loader works for you!

Thanks,
Scott Fowler
Tecplot 360 Product Manager
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Old   June 29, 2021, 07:50
Default This is the solution to the problem.
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Quote:
Originally Posted by basil2 View Post
Go to the File->Preferences in the “general” section, change the “Default Format for I/O” from “CFF” to “Legacy”

And then when you write the .cas and .dat files make sure to select the “.cas and .dat” option, and not the CFF format with .cas.h5 and .dat.h5


This is the solution to the problem.
Thank you very much!
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Old   September 24, 2022, 08:41
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Where can I find file--> preferences to change the default format?
Is it in the fluent?
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Old   September 24, 2022, 08:53
Smile Go to my video on this
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Here is a link to do so. The same I created to tackle this issue.


https://www.youtube.com/watch?v=uN09vQgkslI&t=81s
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Old   September 24, 2022, 08:55
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Quote:
Originally Posted by shruts View Post
Where can I find file--> preferences to change the default format?
Is it in the fluent?
Use this link to solve your issue:
https://www.youtube.com/watch?v=uN09vQgkslI&t=81s
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Old   October 13, 2022, 06:47
Default [Fluent]convert .h5 to .dat, postprocessing using CFD-POST
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I found a way to convert .h5 to .dat, which is accepted by CFD-POST.
I will explain with an example, say there are two files, FFF.gz.cas.h5 and FFF.gz.1.dat.h5.

1. Open “FFF.gz.cas.h5” using Fluent
2. File>Read>Data, choose “FFF.gz.1.dat.h5”
3. File>Write>Case and Data, choose where you like to save the files and click “OK”
4. Repeat 2. and 3. as needed
5. Open CFD-POST
6. Load Results file, choose either “FFF.gz.1.dat” or “FFF.gz.1.cat” to do postprocessing
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