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IDProjectCategoryView StatusDate SubmittedLast Update
0003844OpenFOAMBugpublic2022-05-30 15:222022-06-01 10:03
Reporteruser136 Assigned Tohenry  
PrioritynoneSeverityminorReproducibilityalways
Status closedResolutionsuspended 
PlatformHPC-ClusterOSCentOSOS Versionunknown
Summary0003844: Using frozenPointsZone in a displacementLaplacian decouples cellDisplacement from true position
DescriptionWhen running a moving mesh simulation with a displacementLaplacian solver, the usage of a frozenPointsZone decouples the cellDisplacement variable from the true cell position.

Check the attached picture: In the left part of the domain, the points are fixed, but the variable cellDisplacement shows a deformation.
Steps To Reproduce- Unpack zip-file
- Run moveMesh
- Visualize cellDisplacement. it should be zero for x<0.4999

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Activities

user136

2022-05-30 15:22

reporter  

o9_frozenPoints.png (64,612 bytes)   
o9_frozenPoints.png (64,612 bytes)   
o9_frozenPoints.zip (99,067 bytes)

henry

2022-05-30 15:33

manager   ~0012606

We are moving away from the inefficient and often ineffective Laplacian-based solvers in favour of transformation interpolative methods based on distance between the objects and surfaces. We don't currently have funding to further develop the displacementLaplacian motion solver but if you can secure funding to work on it please contact us directly.

henry

2022-06-01 10:02

manager   ~0012624

Pending funding

Issue History

Date Modified Username Field Change
2022-05-30 15:22 user136 New Issue
2022-05-30 15:22 user136 File Added: o9_frozenPoints.png
2022-05-30 15:22 user136 File Added: o9_frozenPoints.zip
2022-05-30 15:33 henry Note Added: 0012606
2022-06-01 10:02 henry Assigned To => henry
2022-06-01 10:02 henry Status new => closed
2022-06-01 10:02 henry Resolution open => suspended
2022-06-01 10:02 henry Note Added: 0012624
2022-06-01 10:03 henry Priority normal => none