looking for a better way to import data output from fluent to Matlab

guillaumeGrimard · March 10, 2022, 07:17

Hello, for my thesis I have to do some sPOD post processing on my LES simulation in Matlab. Currently I export an ASCII file and read it into Matlab with a text import. The ASCII files are MASSIVE and the Matlab .mat files take up an order of magnitude less space on my hard drive. This tells me that ASCII files don't have a high information / byte ratio. Is there a way to export fluent data that is readable by Matlab that has a lower file size? thanks for the help

bw91 · November 11, 2022, 14:54

Did you ever find a solution to this? I am in an almost identical position.

guillaumeGrimard · November 11, 2022, 15:04

Quote:

Originally Posted by bw91

Did you ever find a solution to this? I am in an almost identical position.

Hi, yes I found that it is possible to read out the cas.h5 and .dat.h5 format as HDF5 with Python and Matlab. But it will require a good amount of programming work, also it can be challenging to reconstruct the mesh because it is stored in a clever format & there is not a lot of documententation from ANSYS, but it is possible to reverse engineer. https://github.com/ggrimard/ANSYSfluent is a repo I created in my free time to read the mesh into python.

bw91 · November 11, 2022, 15:19

Oh that's awesome. Do you have a different link though? The one provided leads to a "page not found."

guillaumeGrimard · November 11, 2022, 15:20

It should work now, repo was set to private

bw91 · November 11, 2022, 15:24

Yep, all good. Thanks

March 10, 2022, 07:17	looking for a better way to import data output from fluent to Matlab	#1
guillaumeGrimard New Member guillaume grimard Join Date: Mar 2022 Posts: 3 Rep Power: 3	Hello, for my thesis I have to do some sPOD post processing on my LES simulation in Matlab. Currently I export an ASCII file and read it into Matlab with a text import. The ASCII files are MASSIVE and the Matlab .mat files take up an order of magnitude less space on my hard drive. This tells me that ASCII files don't have a high information / byte ratio. Is there a way to export fluent data that is readable by Matlab that has a lower file size? thanks for the help

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November 11, 2022, 14:54		#2
bw91 New Member Brad Join Date: Oct 2021 Posts: 7 Rep Power: 3	Did you ever find a solution to this? I am in an almost identical position.

November 11, 2022, 15:19		#4
bw91 New Member Brad Join Date: Oct 2021 Posts: 7 Rep Power: 3	Oh that's awesome. Do you have a different link though? The one provided leads to a "page not found."

November 11, 2022, 15:20		#5
guillaumeGrimard New Member guillaume grimard Join Date: Mar 2022 Posts: 3 Rep Power: 3	It should work now, repo was set to private

November 11, 2022, 15:24		#6
bw91 New Member Brad Join Date: Oct 2021 Posts: 7 Rep Power: 3	Yep, all good. Thanks