Learning Forum

[Publius]

I am trying to export solution data to Tecplot. In this case, it's a steady, axisymmetric simulation. I am exporting using Scheme TUI:

(ti-menu-load-string (format #f "file export tecplot test.plt * () absolute-pressure density velocity-magnitude axial-velocity radial-velocity mach-number temperature y-plus gamma sound-speed ()"))

Specifically, the TUI command I'm using is:
file export tecplot test.plt * () absolute-pressure density velocity-magnitude axial-velocity radial-velocity mach-number temperature y-plus gamma sound-speed ()

This does not always produce the same .plt output. Sometimes, this produces only the surfaces (all surfaces are selected via the "*"). Somtimes, it produces all of the surfaces (boundaries and custom-defined surfaces) plus two additional zones called "Unspecified," which are the interior cell zones. I want my output to have the surfaces AND the interior zone included. 

I have attempted to export using the GUI (File>Export>Solution Data), via TUI, and through a Scheme/TUI script. I have done these on the same case/data file. Sometimes, it produces just the surfaces. Sometimes, it produces everything I want. I cannot figure out what the difference is that causes Fluent to sometimes include everything and sometimes include just the surfaces. I have run the exact same code on the exact same file, and sometimes it includes everything and sometimes it includes only the surfaces. Any insight on this kind of discrepancy would be great, as I am trying to automate many similar simulations. 

[Amine Ben Hadj Ali]

I can only confirm that the TUI command is correct. I cannot judge the other aspects affecting Tecplot itself. You might try another kind of export to check if it you have only issues with the Tecplot export (example using ASCII). Can you try on another case if you reproduce the issue (like a dummy pipe flow)?

[Rob]

The command should do the same thing every time. If you check the transcript in Fluent does it report the same number of nodes, elements and fields each time? 

Are you running Fluent in or outside of Workbench?