CFX from Matlab Error

zese · August 14, 2023, 01:16

Dear all,

I want to run cfx pre in matlab. so I wrote the following command in matlab:

system('C:"Program Files""ANSYS Inc"\v202\CFX\bin\cfx5pre.exe -line -def ./filename.def -batch filename.pre')

in which filename.pre is the session file.
but I receive the following error:
-- ERROR -- A simulation is already open! This must be closed before opening a new simulation.

ans =

0

Does anyone know how I can solve it? because I dont see any simulation running in my system

Gert-Jan · August 14, 2023, 03:28

Is there a lock file (.lck) present in your working folder?
This might prevent opening the definition file. Therefore delete it and see if it helps.

ghorrocks · August 14, 2023, 05:53

Also, check that your script (filename.pre) does not open a .cfx file and then open another one (or start a new one). I think that gives the error you describe. You have to close the first cfx file before you can open a new one.

Gert-Jan · August 14, 2023, 05:58

On top of that: I think you should read .cfx-files and write .def-files. Is that what you do?

August 14, 2023, 01:16	CFX from Matlab Error	#1
zese Senior Member Zese Join Date: Sep 2013 Posts: 102 Rep Power: 12	Dear all, I want to run cfx pre in matlab. so I wrote the following command in matlab: system('C:"Program Files""ANSYS Inc"\v202\CFX\bin\cfx5pre.exe -line -def ./filename.def -batch filename.pre') in which filename.pre is the session file. but I receive the following error: -- ERROR -- A simulation is already open! This must be closed before opening a new simulation. ans = 0 Does anyone know how I can solve it? because I dont see any simulation running in my system

August 14, 2023, 05:53		#3
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,703 Rep Power: 143	Also, check that your script (filename.pre) does not open a .cfx file and then open another one (or start a new one). I think that gives the error you describe. You have to close the first cfx file before you can open a new one. __________________ Note: I do not answer CFD questions by PM. CFD questions should be posted on the forum.

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August 14, 2023, 03:28		#2
Gert-Jan Senior Member Gert-Jan Join Date: Oct 2012 Location: Europe Posts: 1,827 Rep Power: 27	Is there a lock file (.lck) present in your working folder? This might prevent opening the definition file. Therefore delete it and see if it helps.

August 14, 2023, 05:58		#4
Gert-Jan Senior Member Gert-Jan Join Date: Oct 2012 Location: Europe Posts: 1,827 Rep Power: 27	On top of that: I think you should read .cfx-files and write .def-files. Is that what you do?