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IDProjectCategoryView StatusDate SubmittedLast Update
0003042OpenFOAMBugpublic2018-08-15 03:592018-08-15 12:11
Reporterlin Assigned Tohenry  
PriorityhighSeveritymajorReproducibilityalways
Status closedResolutionsuspended 
PlatformGNU/LinuxOSUbuntuOS Version14.04
Summary0003042: pseudo air flow produced with interFoam solver
DescriptionFor a container, if the bottom half is filled with water, the left is filled with air, as the interface is normal to gravity, both the air and water are expected to be at still state. But for an idealized case study with interFoam, unrealistic air flow is generated.
Steps To Reproduce1. copy the default damBreak case.

2. change the setFieldsDict as follow:
$diff system/setFieldsDict /opt/openfoam6/tutorials/multiphase/interFoam/laminar/damBreak/damBreak/system/setFieldsDict
27c27
< box (0 0 -1) (0.584 0.292 1);
---
> box (0 0 -1) (0.1461 0.292 1);

3. run the case and check the velocity field in paraFoam.
TagsNo tags attached.

Activities

lin

2018-08-15 03:59

reporter  

vel.png (19,763 bytes)   
vel.png (19,763 bytes)   

henry

2018-08-15 08:24

manager   ~0009953

This is a known effect, do you have a proposal to avoid it?

lin

2018-08-15 10:40

reporter   ~0009954

Thanks for your confirmation. I do not know how to avoid it, I wonder whether you know what causes this problem?

henry

2018-08-15 11:49

manager   ~0009955

No I have not investigated the issue in detail and it is likely to be VERY time consuming so would require funding. Are you planning to investigate it yourself and provide a patch to correct it?

lin

2018-08-15 12:02

reporter   ~0009957

I'm still new to OpenFOAM, so finding the bug is challenge to me.

henry

2018-08-15 12:11

manager   ~0009958

Pending funding and/or contribution.

Issue History

Date Modified Username Field Change
2018-08-15 03:59 lin New Issue
2018-08-15 03:59 lin File Added: vel.png
2018-08-15 08:24 henry Note Added: 0009953
2018-08-15 10:40 lin Note Added: 0009954
2018-08-15 11:49 henry Note Added: 0009955
2018-08-15 12:02 lin Note Added: 0009957
2018-08-15 12:11 henry Assigned To => henry
2018-08-15 12:11 henry Status new => closed
2018-08-15 12:11 henry Resolution open => suspended
2018-08-15 12:11 henry Note Added: 0009958