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IDProjectCategoryView StatusLast Update
0002860OpenFOAMBugpublic2018-02-28 23:53
ReporterRoversella Assigned Towyldckat  
PrioritynormalSeverityblockReproducibilityalways
Status closedResolutionno change required 
OSUbubtuOS Version16.04 
Summary0002860: ISSUE in creating ACMI - createBaffles utility
DescriptionThe case is already set up, just need to run createBaffle. It can be found at this link


https://drive.google.com/open?id=1l1U4uryGGvMJqTys12YdyJ_6zOQh5-p2
Steps To ReproduceThe case is already set up, just need to run createBaffle. It can be found at this link


https://drive.google.com/open?id=1l1U4uryGGvMJqTys12YdyJ_6zOQh5-p2
TagsAMI

Activities

Roversella

2018-02-27 16:08

reporter   ~0009352

Bad points error when I try to have a couple of ACMI interfaces created via createBaffles utility. Bad points (coincident) fatal error while computing normal, but checkMesh is ok.

Link to error report in cfd-online forum. More details and pictures there.

https://www.cfd-online.com/Forums/openfoam-pre-processing/199051-issue-creating-acmi.html

wyldckat

2018-02-28 23:52

updater   ~0009355

I'm sorry to say that your report does not follow the rules for this issue tracker: https://bugs.openfoam.org/rules.php

Namely:
 - A clear description of the problem to help others who encounter a similar issue in the future.
 - Evidence that user error is not the cause of the issue.

Having all of the actual information placed elsewhere makes this issue pretty much useless if the two links are ever deleted.

Either way, running "checkMesh -allTopology -allGeometry" reveals that this mesh has a lot of problems, not just a "high non-orthogonality warnings at the most". Attached is the log file that shows the output of the aforementioned command.


Partially quoting (what should have been written on this report originally) from the forum post that you've mentioned, for future record:

----
I am encountering an annoying issue while creating ACMI interfaces. Particularly, when the createBaffle utility calculates the faceAreaWeight, I get a bad points error.

    --> FOAM FATAL ERROR:
    Bad points:(0.0488523 -0.0409136 0.0101859) (0.0488523 -0.0409136 0.0101859) (0.0488523 -0.0409136 0.0101859)

        From function void Foam::plane::calcPntAndVec(const point&, const point&, const point&)
        in file meshes/primitiveShapes/plane/plane.C at line 90.

    FOAM aborting

What I got is that the calcPntAndVec function (plane.C at 90) is trying to evaluate the normal of the triangle made of three points that are actually coincident. So the utility complains and I cannot have my ACMI built.

In the attachment, the boundary mesh and the bad-overlapping points depicted in red. The mesh is ok (high non-orthogonality warnings at the most).

Any ideas on how to fix this?

Many thanks in advance.
----
log.checkMesh (5,594 bytes)

Issue History

Date Modified Username Field Change
2018-02-27 15:44 Roversella New Issue
2018-02-27 15:44 Roversella Tag Attached: AMI
2018-02-27 16:08 Roversella Note Added: 0009352
2018-02-28 23:52 wyldckat File Added: log.checkMesh
2018-02-28 23:52 wyldckat Note Added: 0009355
2018-02-28 23:53 wyldckat Assigned To => wyldckat
2018-02-28 23:53 wyldckat Status new => closed
2018-02-28 23:53 wyldckat Resolution open => no change required