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Help! How to output slice data during run time? |
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#1 |
Member
Jack
Join Date: Dec 2011
Posts: 94
Rep Power: 14 ![]() |
Hi foamers,
I want to output some slices during run time, e.g., a x-z plane of velocity at y=1.0 in a channel. I can do it after the simulation using the "sample" utility, but that way I have to output the whole fields every time step, which makes the output data very huge. So is there a way to output just some slices during run time? (may be adding sth in controlDict?) Many thanks in advance! Regards, |
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#2 |
New Member
Blaž Mikuž
Join Date: Sep 2011
Location: Ljubljana
Posts: 29
Rep Power: 15 ![]() |
Hi ripperjack
use function object sampling -> surfaces. For example: for a z-cut of velocity field just append this text at the bottom of controlDict: HTML Code:
functions { my_surfaces { type surfaces; interpolationScheme cellPoint; functionObjectLibs ( "libsampling.so" ); enabled true; // this is just a switch on/off for that function outputControl timeStep; outputInterval 2; // the surface will be stored every 2nd time step (for example) surfaceFormat vtk; surfaces ( zCut { // Cutingplane using iso surface type cuttingPlane; planeType pointAndNormal; pointAndNormalDict { basePoint (0.0 0.0 0.12); normalVector (0.0 0.0 1.0); } interpolate true; } ); fields ( U ); } } |
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