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January 6, 2013, 22:25 |
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#21 |
Member
Darren Leong
Join Date: Dec 2010
Posts: 64
Rep Power: 15 |
Hi Ali,
Just replied your email but good to see you did post the question on forum. The example script is pretty much what you're asking for, you just need to work thru it. Otherwise, as mentioned in the email, you can just use the system command terminal: Have a look at the subsections in the link below on how to use cfx through your system command terminal: https://www.sharcnet.ca/Software/Flu.../i1304872.html If you're familiar with .bat, write the command for execution for each mesh row by row using a text editor, save it as *.bat, run it and you're done. As for post processing of quantitative data, you can use cfxmonitor.exe to extract the outputs of *.res in a .csv format to be read by excel/matlab. If you want visualisation, the only way is using cfx-post. _ On the hind side, try looking into the design optimisation feature in ANSYS Workbench. It works well for structural but i'm not sure if it's applicable for CFX yet. |
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January 7, 2013, 16:08 |
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#22 |
Super Moderator
Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 17,826
Rep Power: 144 |
ANSYS Workbench optimsation works fine for CFX.
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September 1, 2015, 02:03 |
call CFX from Matlab
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#23 |
New Member
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Hi everyone,
I have set up a CFD problem in CFX (workbench 16) and it works with no problem and accurate results. Now I want to set input velocity and output pressure to specific values from MATLAB and then start solving with cfx5solve. I can categorize my issue in two following questions: 1- How is it possible to set specific values for velocity and pressure from MATLAB, is it possible to set them in ccl or def files (editing ccl and def) and then call cfx5solve to run the analysis. I assume that a command like this should work: set-> variable name->variable value but I can not find the corresponding command in MATLAB 2- How should I define run in MATLAB? I tried the following code in command window in MATLAB: %%%%%%%%%%%% !"C:\Program Files\Ansys Inc\V160\CFX\bin\cfx5solve" -def FFCFX0203.def -ccl relaibilityCCL.ccl %%%%%%%%%%%% but I receive the following error: An error has occurred in cfx5solve: Command Language file relaibilityCCL.ccl does not exist I would be truly thankful if you could help me to manage this issue. |
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September 1, 2015, 02:21 |
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#24 |
Senior Member
Maxim
Join Date: Aug 2015
Location: Germany
Posts: 415
Rep Power: 13 |
Well, isn't that error message pretty clear? Maybe because of a typo? It's spelled "reliability" to my English knowledge
Last edited by -Maxim-; September 1, 2015 at 02:21. Reason: typo |
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September 1, 2015, 02:52 |
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#25 | |
New Member
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Quote:
Is there any special directory for def and ccl files I have left both of them on desktop! |
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September 1, 2015, 02:54 |
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#26 |
Senior Member
Maxim
Join Date: Aug 2015
Location: Germany
Posts: 415
Rep Power: 13 |
okay, but if the message is still: 'does not exist', your script cannot find the file in the folder it is looking for the file. My guess would be that the ccl file isn't in the right folder? Is it in the same directory as your def file?
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September 1, 2015, 02:55 |
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#27 |
Senior Member
Lance
Join Date: Mar 2009
Posts: 669
Rep Power: 22 |
My guess is that the working directory is not set. CFX looks for your .ccl file somewhere else.
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September 1, 2015, 03:03 |
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#28 | |
New Member
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Quote:
yhe question is when I type the following command in matlab, I do not know in wich directory Matlab looks up the def and ccl files! ? I think a special directory should be specified. Am I right? |
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September 1, 2015, 03:06 |
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#29 | |
New Member
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Quote:
But I think MATLAB has got a big problem in finding def and ccl files because when I wright the following command it fails to find deffile. the same error hapens for both ccl and def! %%%%%%%%%%%%%%% !"C:\Program Files\Ansys Inc\V160\CFX\bin\cfx5solve" -def FFCFX0203.def %%%%%%%%%%%%%% error: An error has occurred in cfx5solve: ANSYS CFX Solver Input File C:/Users/NP/Documents/MATLAB/FFCFX0203.def does not exist |
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September 1, 2015, 04:09 |
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#30 |
Senior Member
Maxim
Join Date: Aug 2015
Location: Germany
Posts: 415
Rep Power: 13 |
then either put your def and ccl file in C:/Users/NP/Documents/MATLAB/
or change your command to -def C:/Users/NP/Desktop/FFCFX0203.def this is standard batch/console/programming syntax. Or look up what a 'working directory' is and how it is set. I don't want to be rude but I think you should go back a step and teach yourself some basics first... |
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September 1, 2015, 05:24 |
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#31 | |
New Member
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Quote:
It worked: !"C:\Program Files\Ansys Inc\V160\CFX\bin\cfx5solve" -def C:/Users/NP/Desktop/FFCFX0203.def Anyway, you are right. I am not familiar with programming. |
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September 1, 2015, 13:03 |
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#32 | |
New Member
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Quote:
I need to edit CFX definition file (.def) in MATLAB and set some boundary conditions to new values and restart the analysis for updated boundary conditions. I think it is a common issue in optimization problems but I can not find related topics in forum. I would be truly thankful if you could help me to fix this issue. |
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September 2, 2015, 02:15 |
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#33 |
Senior Member
Maxim
Join Date: Aug 2015
Location: Germany
Posts: 415
Rep Power: 13 |
Darren Leong posted some Matlab code a page back. I would go from there and try to implement your ideas in the same syntax.
I don't have Matlab installed right now, so I cannot test things. But what about you post your Matlab code that you have written so far? |
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September 2, 2015, 02:40 |
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#34 |
Senior Member
Lance
Join Date: Mar 2009
Posts: 669
Rep Power: 22 |
Write a new .ccl in Matlab and use the -ccl option? You can get the syntax for the .ccl file by right clicking on the boundary condition in cfx-pre and 'edit in command editor'.
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February 9, 2019, 07:33 |
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#35 | |
Member
HS
Join Date: Sep 2015
Posts: 30
Rep Power: 11 |
Quote:
This seems perfect for what I am currently trying to achieve. However the link is now invalid, is there anyway you could please re-upload the link to the files? Thanks! |
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