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data missing when Sampling in openfoam

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Old   April 15, 2010, 06:53
Default data missing when Sampling in openfoam
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parham momeni
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Hi chaps,
I am passing 100000 nodes into sample dictionary for a domain and I did make sure that all the coordinates are inside the domain, however when sample is runed some of the points although they are inside the physical doamin are missing and I am receiving no error on this, can any one help me to figure out how can I resolve this issue when sampling?
cheers
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Old   April 16, 2010, 05:36
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Philip Cardiff
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Hi,

I have experienced the same problem and I do not know why.

I have found that it can help if you slightly move the start/end points and/or maybe changing the number of points.

I think it might have something to the do with sample not "liking" when points land exactly on a cell face, but I am just guessing.

Philip
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Old   May 26, 2014, 04:06
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Quote:
Originally Posted by bigphil View Post
Hi,

I have experienced the same problem and I do not know why.

I have found that it can help if you slightly move the start/end points and/or maybe changing the number of points.

I think it might have something to the do with sample not "liking" when points land exactly on a cell face, but I am just guessing.

Philip
Hallo Philip,

I am also experiencing the same problem. Do you know more about this now? See my post

Number of sampled cellPointFace of a patch does not match face number of patch

Besides that, I check the sampled Value with original patch value in VTK fie with paraview, there is also some difference, I really do not get it.
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