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June 7, 2012, 06:10 |
Getting stared with OpenFOAM
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#1 |
Senior Member
Julien
Join Date: Jun 2012
Location: France
Posts: 152
Rep Power: 14 |
Hi dear all,
I would like to have some tips about starting with OpenFOAM. I have read the User Guide and fallow some tutorials, but I am still not autonome with this computing toobox. Where to find some info? Some help? I am a expert in MatLab; and typing help function gives me the syntaxe and so on. Something equivalent in OpenFOAM? I apologize for this very "low-rated" question, but I did not find any answer on the web... |
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June 7, 2012, 06:36 |
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#2 |
Senior Member
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HI,
sorry I'm afraid that information about openFoam are rarely. but as start you can specify your case and begin to select solver, block your mesh,...etc. in your way you will find questions, you can search for it and consult cfd-online members. by time your knowledge will be accumulated. that is how i started. good luck |
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June 7, 2012, 06:38 |
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#3 |
Disabled
Join Date: Mar 2011
Posts: 174
Rep Power: 15 |
http://www.cfd-online.com/Forums/ope...-new-user.html
http://www.cfd-online.com/Forums/ope...-openfoam.html http://www.cfd-online.com/Forums/ope...-openfoam.html http://www.cfd-online.com/Forums/ope...-openfoam.html http://www.cfd-online.com/Forums/ope...ogramming.html The search button can do magic. |
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June 7, 2012, 06:47 |
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#4 |
Senior Member
Julien
Join Date: Jun 2012
Location: France
Posts: 152
Rep Power: 14 |
Thanks a lot, anon_a. It was obvious this question had been allready asex, but I didn't find where!
Have a nice day! |
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June 8, 2012, 06:25 |
Installation problems
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#6 |
Senior Member
Julien
Join Date: Jun 2012
Location: France
Posts: 152
Rep Power: 14 |
hi dear helpers,
I may add that both "users" and "programmers" guides are usefull. I thought the only first was necessary for me, but the the second is also very usefull... Maybe I was over confident about my skills... By the way, I have new problems, about programming. First, I had to change allowSystemOperations from 0 to 1 in the file /opt/openfoam201/etc/controlDict (I had to connect as SuperUser 'cause I didn't have correct rights). But now, when I run potentialFoam from the cylinder tutorial, it stops with the error: Code:
--> FOAM FATAL IO ERROR: cannot find file file: /media/230Go/Etudes/Julien/OpenFOAM/TutoAmoi/cylinder/0/p at line 0. From function regIOobject::readStream() in file db/regIOobject/regIOobjectRead.C at line 73. |
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June 13, 2012, 12:55 |
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#7 |
Senior Member
Julien
Join Date: Jun 2012
Location: France
Posts: 152
Rep Power: 14 |
I don't know what I did, but it works now...
Thanks! |
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June 18, 2012, 06:11 |
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#8 |
Senior Member
Julien
Join Date: Jun 2012
Location: France
Posts: 152
Rep Power: 14 |
Hi dear Foamers,
how to get info on a specific tool? For example, I would like to know how to use turbulentInlet (user guide p. U-137); none of CFDOnline and OpenFoamWiki searching tools give results... |
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June 18, 2012, 06:32 |
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#9 |
Disabled
Join Date: Mar 2011
Posts: 174
Rep Power: 15 |
You might not like the answer:
a) The doxygen documentation, found in http://www.openfoam.org/docs/cpp/ Just write turbulentInlet in the search box and explore. b) The code itself. Using "find ./ -name *turbulentInlet*" from src/ I got this src/finiteVolume/fields/fvPatchFields/derived/turbulentInlet Off course, you will see practically the same as in the doxygen guide. If nothing is available in cfd-online or in people's blogs (which is usually not for very specialized stuff) you are on your own. Good luck... |
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June 18, 2012, 08:08 |
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#10 |
Senior Member
Bernhard
Join Date: Sep 2009
Location: Delft
Posts: 790
Rep Power: 22 |
My starting point for these kind of things is going to the tutorials (type 'tut') and then find out where the turbulentInlet is used: grep turbulentInlet `find`. This gives you some more information about how things are handled in a case. Next step is to browse the source code, where you can find what is being done if you learn to read the code. Also, the .H files give some comments about what is implemented.
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June 18, 2012, 08:11 |
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#11 |
Disabled
Join Date: Mar 2011
Posts: 174
Rep Power: 15 |
Bernhard is right about the tutorials. I just took it for granted that you have already searched them and there is nothing related. Not as unusual as it sounds.
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June 25, 2012, 10:42 |
Forces, probes,...
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#12 |
Senior Member
Julien
Join Date: Jun 2012
Location: France
Posts: 152
Rep Power: 14 |
Hi!
I would like to take info, post processed data from a case (unsteady LES). Could anyone teaches me:
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