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Search: Posts Made By: kkk
Forum: OpenFOAM Meshing & Mesh Conversion April 21, 2016, 00:58
Replies: 2
Views: 2,259
Posted By kkk
Hi This might help you. Just give it try. ...

Hi

This might help you.
Just give it try.

http://www.cfd-online.com/Forums/blogs/skeptik/2161-salometoopenfoam-mesh-conversion.html...
Forum: ParaView April 6, 2016, 03:43
Replies: 7
Views: 4,301
Posted By kkk
Hi I attached OpenFOAM tutorial case...

Hi

I attached OpenFOAM tutorial case including a Paraview's python script.
Please execute following after ./Allrun


pvpython getProbeData.py


It will output a csv file in which transient...
Forum: OpenFOAM Running, Solving & CFD April 5, 2016, 00:05
Replies: 11
Views: 1,160
Posted By kkk
Hi Kossivi Actually I have never used...

Hi Kossivi

Actually I have never used MRFSimpleFoam, so this is my guess.
I guess the rotation force might be added to N-S equation as a inertial force in MRFSimpleFoam.
Just imagine that you...
Forum: ParaView April 4, 2016, 08:14
Replies: 1
Views: 2,723
Posted By kkk
Hi Just try this: reader =...

Hi

Just try this:



reader = OpenDataFile('myrun.foam')
time = reader.TimestepValues
reader.UpdatePipeline(max(time))
RenderView1 = GetRenderView()
Forum: OpenFOAM Running, Solving & CFD March 31, 2016, 11:07
Replies: 11
Views: 1,160
Posted By kkk
Hi Kossivi Yeah, I think so. I guess you...

Hi Kossivi

Yeah, I think so.
I guess you might have to monitor more long time for making sure it really become steady state.
If transient simulation become steady state, the monitoring value...
Forum: OpenFOAM Running, Solving & CFD March 31, 2016, 00:11
Replies: 11
Views: 1,160
Posted By kkk
Hi Kossivi Actually, I have not set maxCo...

Hi Kossivi

Actually, I have not set maxCo more than 10.
Simulation usually become in fail when I set maxCo more than 10.
But I've heard around 100 was OK from someone.

Generally simulation is...
Forum: ParaView March 29, 2016, 19:43
Replies: 7
Views: 4,301
Posted By kkk
Hi Do you want to do it with Paraview GUI? ...

Hi

Do you want to do it with Paraview GUI?
I always use a python script for getting any time transient data in one csv with pvpython.
If the python script is OK.
I will send you it.

Regards,...
Forum: OpenFOAM Running, Solving & CFD March 28, 2016, 21:53
Replies: 11
Views: 1,160
Posted By kkk
Hi Kossivi It seems to be very stable...

Hi Kossivi

It seems to be very stable caluclation.
I guess there is no way except finding mesh where Co is high and re-meshing there.

Or,
increasing maxCo,
increasing parallel numbers.
...
Forum: OpenFOAM Running, Solving & CFD March 28, 2016, 07:48
Replies: 11
Views: 1,160
Posted By kkk
pimpleDyMFaom for real industrial case taking too long without converging

Hi

Could you show me solver log?
How many times does p iteration become?

Regards,
kkk
Forum: OpenFOAM Running, Solving & CFD March 25, 2016, 04:34
Replies: 14
Views: 2,938
Posted By kkk
Dear xoitx I tried to modify mesh manually. ...

Dear xoitx

I tried to modify mesh manually.
Then, calculation have done with hex mesh model.
There was no so high velocity locally.

I tried to do snappyHexMesh too. And now I am trying test...
Forum: OpenFOAM Running, Solving & CFD March 24, 2016, 11:35
Replies: 14
Views: 2,938
Posted By kkk
Hi I tried your case with interDyMFoam and...

Hi

I tried your case with interDyMFoam and found that the velociry became so high locally.
I think you have to modify the mesh.
To consider moving wall velocity, I also think around 1e-5 deltaT...
Forum: OpenFOAM Running, Solving & CFD March 24, 2016, 04:58
Replies: 14
Views: 2,938
Posted By kkk
Hi It seems that initial deltaT = 0.05 is...

Hi

It seems that initial deltaT = 0.05 is the value of being set in controlDict.
How about trying to change the value of deltaT in controlDict.
Max courant number became 1341 when deltaT was...
Forum: ParaView March 23, 2016, 06:08
Replies: 3
Views: 2,476
Posted By kkk
Hi I created a python script that output...

Hi

I created a python script that output water height as csv file.
I attached test case too.
Please execute following after ./Allrun

pvpython waterHeight.py

It will out put waterHeight.csv...
Forum: ParaView March 22, 2016, 07:52
Replies: 3
Views: 2,476
Posted By kkk
Hi I don't know if the graph including 3...

Hi

I don't know if the graph including 3 axis, coordX, height and time, can be described in paraview.
But it must be possible to output csv files including coordX and height at each time.
I...
Forum: OpenFOAM Programming & Development March 22, 2016, 03:57
Replies: 6
Views: 1,433
Posted By kkk
Hi Timucin Thank you for your giving me some...

Hi Timucin

Thank you for your giving me some informations.

I think your article is the almost same what I want to achive.
Actually, I have to consider also region outside of boundary. so, I...
Forum: OpenFOAM Programming & Development March 21, 2016, 22:56
Replies: 6
Views: 1,433
Posted By kkk
Only water pass through with cyclic boundary

Hi



My problem has not be solved yet.

I am trying to customize fan boundary.

What I am doing is setting jump_ as -U*alpha, but jump_ seems scalarField and not being set vectorField.
Forum: OpenFOAM Running, Solving & CFD March 21, 2016, 22:41
Replies: 3
Views: 1,377
Posted By kkk
I could find to fixed this problem

Hi

I found the other way to set non-zero velocity on blockage wall of cyclicACMI.
timeVaryingUniformFixedValue has to be used instead of fixedValue.
Actually,timeVaryingUniformFixedValue seemed...
Forum: OpenFOAM Programming & Development July 8, 2015, 04:06
Replies: 6
Views: 1,433
Posted By kkk
Hi Thank you for your helping. But I...

Hi

Thank you for your helping.
But I couldn't understand your point.

I checked boundaryFoam's sorce code and those tutorials, but I couldn't find any description about customizing cyclic...
Forum: OpenFOAM Programming & Development July 7, 2015, 06:30
Replies: 6
Views: 1,433
Posted By kkk
Unhappy Only water pass through with cyclic boundary

Hi

I would like to make a custom cyclic boundary with that only water pass through.
Actually I know how I should do. U times alpha should be set as cyclic boundary value instead of U.
I tried...
Forum: OpenFOAM Running, Solving & CFD January 20, 2015, 01:46
Replies: 3
Views: 1,377
Posted By kkk
Not yet

Hi
I checked openfoam bug tracker after a long interval. It seems to take more time to fix it. I tried to read the scripts about cyclicACMI, I don't think I can fix it by myself. Actually,there is...
Forum: OpenFOAM Running, Solving & CFD June 11, 2014, 03:50
Replies: 3
Views: 1,377
Posted By kkk
Unhappy non-zero velocity can not be set to blockage wall of cyclicACMI?

Hi Foamer!

I am trying to do tutorial of cyclicACMI with OF2.3.x oscillatingInletACMI2D.
I can not set non-zero velocity on ACMI2_blockage.
fixedValue (0 0 0) is default setting. I want to set...
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