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[swak4Foam] visualize surface defined in swakExpression |
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#1 |
Member
Fynn
Join Date: Feb 2016
Posts: 48
Rep Power: 10 ![]() |
Hi,
I am sampling values on a half-plane using swak. The example beneath works fine but I would like to know if there is a possibility to also export the defined surface as a stl. Or would it be possible to pre-define a surface that I can supply my swak expression with? Since my mesh is moving, it should not be a faceSet or faceZone, as these are moving with the mesh. Thanks ![]() Code:
name { type swakExpression; valueType surface; surfaceName name2; surface { type plane; surfaceType searchablePlate; span (100 -100 0); origin (0 1 0); normalVector (0 0 1); basePoint (0 1 0); // interpolate false; } verbose true; expression "mag(U)"; ignore_unimplemented_simpleFunctionObject::movePoints true; accumulations ( min max ); } Last edited by PanPeter; February 22, 2018 at 02:55. |
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#2 |
Member
Fynn
Join Date: Feb 2016
Posts: 48
Rep Power: 10 ![]() |
I can't define a half plane as described above:
When changing the expression to Code:
mag(Sf()) Has anybody defined a searchablePlate inside a swakExpression and could give me a hint how this could be solved? |
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#3 |
Member
Fynn
Join Date: Feb 2016
Posts: 48
Rep Power: 10 ![]() |
Hi,
I've tried to find solutions to define the sampling over a half plane and couldn't find anything but the definition of external stl files. So I thought of this work-around: A plane is defined, instead of a half plane, and the swak expression only takes values of cells, whose dependent coordinate is smaller than some threshold (y0 in this case). Code:
underScreenSurface{ y0 // define it here type swakExpression; valueType surface; surfaceName normalZ; surface{ type plane; basePoint (0 0 0); normalVector (0 0 1); } verbose true; expression "(pos().y <= $y0) ? mag(Sf()) : 0"; accumulations ( sum ); } |
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#4 | |
Assistant Moderator
Bernhard Gschaider
Join Date: Mar 2009
Posts: 4,225
Rep Power: 51 ![]() ![]() |
Quote:
Code:
writeSurfaceOnConstruction true; autoWriteSurface true; surfaceFormat vtk;
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Tags |
moving mesh, surface sampling |
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