Error: GENERAL-CAR-CDR: invalid argument [1]: improper list
 

I'm currently trying to run a 1mil cell mesh but everytime I load it I get the following error
Setting Post Processing and Surfaces information ...
Error: GENERAL-CAR-CDR: invalid argument [1]: improper list
Error Object: #f

I will also get an error stating "material air not available" but this one only appears some times. I have tried re-defining my material from the Fluent database but that doesn't work.

The above errors are preventing me from using my Parameter Set in workbench which would be very helpful to use as I have a bunch of design points I need to run. I can run my cases by manually clicking Calculate.

If it helps at all this is the error workbench gives me when I try to run a parameter set:
Error Occured during handling message in WorkBench: An error occured in FLUENT when applying cx state information.
The cortex state and surfaces could not be updated

Any help is much appreciated!!

Hi ddavies

I am having the exact same problem at the moment. Just thought I would see if you managed to find a solution?

Many thanks

Dan

Hi all, I have the same problem right now and I have been stuck to it for a while. Can you please let me know what was the problem for you guys?

Thanks

Hi,I have the same problem. Have you solved that?
Error: CAR: invalid argument [1]: wrong type [not a pair]
Error Object: ()

it is a corrupted file.

I'm using an older version of FLUENT (V6), and I am using a very large mesh as well. I get a similar error saying:

Error: GENERAL-CAR-CDR: invalid argument
Error Object: #f

Any help would be greatly appreciated :)

If the mesh passes the gridcheck, how can it possibly be a corrupted file?

Did anyone find a solution to this problem? I'm facing the same one...

solution
 

Sorry, guys, for reanimating this old post, but I found the reason. The solution is described here. Shortly, you can mark all bodies "fluid" in the DM or Meshing.

In general CAR-CDR means a setting is missing that is needed or is wrongly set up.


Check every set-up-entry in your panels, if there are entries, which make no sense.

In my case I could not switch from transient mode to steady state. I removed one input parameter and afterwards it was working (after testing all other settings...).

Hi Lukas I am facing the same problem right now.
Please could you tell me which input parameter did you have to remove?

I am using fluent 2022 R2: Besides the case where I am working, I opened another case that had a steady state set up: I just changed it to transient (nothing else was modified) then I tried to go back to steady and the same error popped up:


Error: GENERAL-CAR-CDR: invalid argument [1]: improper list
Error Object: #f

Thanks in advance

Hi,


in Ansys Fluent there is a section where you can define "input parameters". E.g. a variable X with a certain value.


I used an input variable to define a velocity at the inlet patch of my domain. After removing this input parameter and setting a manual value for the velocity, the Error disappeared.


Again, this was the issue in my case. You may have to find something else. If nothing works, rebuild your case from the beginning.

you can try these tips
https://howtooansys.blogspot.com/202...ar-cdr-in.html