[ngj]

Dear all,

I tried making a bug-report here (https://develop.openfoam.com), though I was not allowed to open a new issue. Therefore, I will report the bug here instead and hope that it is picked up.

OpenFoam version:
v1706

Solver:
overInterDyMFoam

Tutorial:
floatingBody

Modifications:
1. In the file background/constant/dynamicMeshDict, I set the property accelerationRelaxation to a value of 0.0. This effectively allows for the modelling of a fixed, floating box.

2. I extended the simulation time to something like 50 s instead of the 4.0 s in the tutorial.

3. I removed the damBreak component of the setFieldsDict, such that the water level is flat.

Observed behaviour:
After the modifications, the tutorial essentially models a fixed box in a closed container. It was expected to observe a stagnant solution. The only complication being that the fixed box is treated with the overset functionality.

It was rather observed that the water quickly drained from the computational domain. I expect that there is something happening on the interface of the two computational grids, but it was not apparent, what exactly happens in the overset-functionality, so I do not have any suggested solution.


Kind regards and thank you for looking into this,

Niels

P.S. I am very happy to see this new development and I see many possible applications, where we are currently restricted.

[mattijs]

You'll have to register to post on develop.openfoam.com. Can you please post your issue on the issue tracker?

Thanks,

Mattijs

[ngj]

Hi Mattijs,

I did register, but every time I click on "New Issue", I simply get the list of current issues.

I have tested in both Firefox and Explorer with the same outcome.

Kind regards,

Niels

[mattijs]

Did you log in? Are you accessing https://develop.openfoam.com/Development/OpenFOAM-plus?

[ngj]

Hi Mattijs,

Sorry for the late reply.

Yes, I log in and I still experience the same behaviour, namely that I cannot submit issues. I can see that you have opened an (related?) error, so thank you.

Kind regards,

Niels

[mattijs]

We can masquerade as you and go to project, click on New Issue and all looks normal. Strange.

[ngj]

Hi Mattijs,

I am so sorry for the inconvenience. I went directly to "Issues" with the left drop-down menu, instead of choosing the project and then issues. The latter works, not the former.

I have added some feedback to your code change. I see some improvement, but it is not fixed yet. Let us continue in the bug-tracker.


Kind regards,

Niels