TAGGED: fluent
-
-
June 2, 2024 at 1:46 pm
grayg34
SubscriberI have a udf used in a uds transport equation thatrequites temperature and species mass fraction gradients. I have activated the storage of these gradients with the tui commands. When I write the solution data and open it later the additional gradients are no longer avaliable. Is there a way to include them in the rest of the solution data written to file?
The uds transport equation runs on its own with the background flow fixed (other equations not active) so I'd like to be able to just load the dta file and run the uds equation without having to run a timestep of the backkground flow to get the gradients again.Â
-
June 3, 2024 at 9:30 am
Rob
Forum ModeratorHave a look here  https://ansyshelp.ansys.com/account/Secured?returnurl=/Views/Secured/corp/v241/en/flu_ug/flu_ug_sec_files_data_file_options.html  Looks like it's a Legacy .dat.gz option.Â
If you type it 0 in the TUI that may also recalculate the gradients. It's a shortcut to tell Fluent to calculate zero iterations, but may also do what you need. Alternatively it 1 may be a more reliable option. That will not update the timestep - it adds iterations into the current time step.Â
-
June 4, 2024 at 12:11 pm
grayg34
SubscriberThanks for the link, that looks exactly like what I am after. I tried following the steps but 'Data File Quantities...' is greyed out preventing me from opening the dialogue box.Â
-
June 4, 2024 at 2:59 pm
Rob
Forum ModeratorHave you initialised the model? Some of the field don't exist until that is done so certain features aren't available.Â
-
June 4, 2024 at 3:10 pm
Rob
Forum ModeratorHave you initialised the model? Some of the field don't exist until that is done so certain features aren't available.Â
-
June 4, 2024 at 3:19 pm
Rob
Forum ModeratorHave you initialised the model? Some of the field don't exist until that is done so certain features aren't available.Â
-
June 4, 2024 at 7:08 pm
grayg34
Subscriberyes I have initialized the model. Even after I run for 1 timestep the 'Data File Quantities' is still greyed outÂ
-
June 5, 2024 at 9:08 am
-
June 5, 2024 at 12:59 pm
grayg34
SubscriberI figured it out. I had just save the file in the legacy format that did not work. I had to go to File>preference>general: and select Legacy as the default format. Once I did that, the data file quantities dialogue box was avaliable.Â
Alll of the extra quantities I need are there. Thanks you.Â
-
June 5, 2024 at 1:25 pm
Rob
Forum ModeratorI switched in the TUI so my default remains h5 format. Otherwise same effect.Â
-
- The topic ‘Storing additional solver gradients in data file?’ is closed to new replies.
- How do I get my hands on Ansys Rocky DEM
- Non-Intersected faces found for matching interface periodic-walls
- Unburnt Hydrocarbons contour in ANSYS FORTE for sector mesh
- Help: About the expression of turbulent viscosity in Realizable k-e model
- Script Error
- Facing trouble regarding setting up boundary conditions for SOEC Modeling
- convergence issue for transonic flow
- Running ANSYS Fluent on a HPC Cluster
- Point exception in erosion calculation
- Errors with multi-connected bodies using AQWA
-
1962
-
886
-
599
-
591
-
366
© 2025 Copyright ANSYS, Inc. All rights reserved.