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#1 |
Member
Join Date: May 2010
Posts: 69
Rep Power: 16 ![]() |
Hello everyone,
I wanna compare a 2D flow's velocity profiles at different locations, but when I run sample command, there somethings wrong: // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // Create time Create mesh for time = 0 --> FOAM FATAL IO ERROR: keyword surfaces is undefined in dictionary "/Users/of/OpenFOAM/fpapcocp/system/sampleDict" file: /Users/of/OpenFOAM/fpapcocp/system/sampleDict from line 20 to line 50. From function dictionary::lookupEntry(const word&, bool, bool) const in file db/dictionary/dictionary.C at line 395. FOAM exiting the sampleDict is followed: setFormat raw; interpolationScheme cellPoint; fields ( p U ); sets ( lineX1 { type uniform; axis distance; start (10 0 0); end (10 0.5 0); nPoints 100; } lineX2 { type uniform; axis distance; start (5 0 0); end (5 0.5 0); nPoints 100; } ); I don't know what's wrong,why there is information about surfaces? thank you very much! Last edited by hewei; April 9, 2012 at 12:07. Reason: i wanna delete it, wrong colum |
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#2 |
Senior Member
cfdkid
Join Date: Mar 2009
Posts: 133
Rep Power: 17 ![]() |
Hello,
Can you explain the problem you are solving and post checkMesh commands output? It is not much clear from the data you have given. Regards CFDkid |
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#3 |
Member
Join Date: May 2010
Posts: 69
Rep Power: 16 ![]() |
Hi CFDKid,
Thanks for you reply. I am planning to simulate 2D flat plate boundary layer flow, so I need to choose two location to check the velocity profile. After some iterations, I use the command "simple" to gain the data in the lineX1 and lineX2. btw,I also have no idea how to export the velocity vs t curve. would you or someone could give me some hints? Thanks you again. Wei |
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#4 |
Senior Member
cfdkid
Join Date: Mar 2009
Posts: 133
Rep Power: 17 ![]() |
Being short of time now, please refer following link for more detailed explanation.
http://www.openfoam.org/docs/user/sample.php http://www.openfoam.org/version2.0.0...processing.php http://www.cfd-online.com/Forums/ope...robe-data.html Hope it helps. Regards CFDkid Last edited by kid; April 10, 2012 at 05:53. Reason: few more links |
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#5 | |
Member
Join Date: May 2010
Posts: 69
Rep Power: 16 ![]() |
Thank you CFDKid,
I did this in another way, just defined a surface which the lines are included. so I missed define the surface, that's the reason. the new method you introduce i will try it. W. Quote:
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Tags |
line, sample, surfaces |
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