Very Strange Error: "Error reading number of domains"

Mazze[ITA] · May 14, 2015, 02:23

CFD-Post needs information about the mesh: try to load the .def file concurrently with the other files.

adambarfi · May 14, 2015, 05:29

Dear Opaque, and Lorenzo,

I've tried what you two supposed but it didn't work!!

I ran the simulation for just 2 time steps and then save the files. after that I add the .trn files into the time step selector, so I now have access to my data.

thanks for the reply.

Regards,
Mostafa

Desti · November 9, 2015, 10:25

Thanks a lot.

The hint with "include mesh" worked =)

mehaque101 · August 23, 2016, 13:06

Quote:

Originally Posted by adambarfi

Hi everybody,

I have the same problem.

I forgot to check the include mesh option and then after about 2 weeks solving my case, I cannot access the data!

I'm trying to simulate a turbulent flow over a bluff body using by LES and it's transient.

I've tried opening the mesh separately and then importing the .trn files but it didn't work and I still have the 'Error Reading Number of Domains (G/NZN)' error.

anybody knows how can I solve this problem? I didn't enough time to re-solve my case.

Regards,
Mostafa

Dear
I have the similar problem, and I would like to know,
where did you forget "the include mesh" option.

Thanks.

stormrider · March 13, 2017, 07:24

Hi all! I know the thread has been dead for a while, but it is the first result I found when searching for this error, so I think it's worth it to post the solution I found to it.

1- You can include the mesh when setting up your trn results. (if you plan to have a lot of .trn saved this will take a lot of disk space)

2- If you have .trn without mesh and you get the error: you can load a completed run using the same mesh as your .trn, go in the time step selector of CFD Post and add a timestep choosing the .trn file you want to postprocess. Doing so you can also choose .trn withou mesh from simulations that did not generate any .bak or .res file. (you can create a result file also by starting a simulation with 1 iteration)

I hope this will help and save some time to the next person stumbling on this topic!

S.T.

vivjk94 · December 31, 2020, 02:51

Ticking input mesh files in output control did it for me.

May 14, 2015, 05:29		#22
adambarfi Senior Member Mostafa Mahmoudi Join Date: Jan 2012 Posts: 322 Rep Power: 15	Dear Opaque, and Lorenzo, I've tried what you two supposed but it didn't work!! I ran the simulation for just 2 time steps and then save the files. after that I add the .trn files into the time step selector, so I now have access to my data. thanks for the reply. Regards, Mostafa Mazze[ITA] and morelix like this.

March 13, 2017, 07:24		#25
stormrider New Member Solonariwan Tofusin Join Date: Mar 2017 Posts: 1 Rep Power: 0	Hi all! I know the thread has been dead for a while, but it is the first result I found when searching for this error, so I think it's worth it to post the solution I found to it. 1- You can include the mesh when setting up your trn results. (if you plan to have a lot of .trn saved this will take a lot of disk space) 2- If you have .trn without mesh and you get the error: you can load a completed run using the same mesh as your .trn, go in the time step selector of CFD Post and add a timestep choosing the .trn file you want to postprocess. Doing so you can also choose .trn withou mesh from simulations that did not generate any .bak or .res file. (you can create a result file also by starting a simulation with 1 iteration) I hope this will help and save some time to the next person stumbling on this topic! S.T. bamaoli and Mojo like this. Last edited by stormrider; March 13, 2017 at 07:26. Reason: forgot a line ;)

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
decomposePar no field transfert	Jeanp	OpenFOAM Pre-Processing	3	June 18, 2022 12:01
Cluster ID's not contiguous in compute-nodes domain. ???	Shogan	FLUENT	1	May 28, 2014 15:03
same geometry,structured and unstructured mesh,different behaviour.	sharonyue	OpenFOAM Running, Solving & CFD	13	January 2, 2013 22:40
[snappyHexMesh] snappyHexMesh won't work - zeros everywhere!	sc298	OpenFOAM Meshing & Mesh Conversion	2	March 27, 2011 21:11
[Commercial meshers] Trimmed cell and embedded refinement mesh conversion issues	michele	OpenFOAM Meshing & Mesh Conversion	2	July 15, 2005 04:15

May 14, 2015, 02:23		#21
Mazze[ITA] Member Lorenzo Mazzei Join Date: Dec 2010 Posts: 60 Rep Power: 15	CFD-Post needs information about the mesh: try to load the .def file concurrently with the other files.

November 9, 2015, 10:25		#23
Desti New Member Join Date: Nov 2015 Posts: 2 Rep Power: 0	Thanks a lot. The hint with "include mesh" worked =)

December 31, 2020, 02:51		#26
vivjk94 Member Vivek MJ Join Date: Oct 2020 Location: India Posts: 53 Rep Power: 5	Ticking input mesh files in output control did it for me.