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Forum: OpenFOAM Running, Solving & CFD

December 20, 2020, 23:07

Replies: 42

Bubble is not increasing in size in Nucleate boiling

Views: 3,926

Posted By Bali

Hi Naarendharan, have you tried use symmetry...

Hi Naarendharan, have you tried use symmetry boundary in your 3d simulation. it might be useful

Forum: OpenFOAM Running, Solving & CFD

June 3, 2020, 07:47

Replies: 42

Bubble is not increasing in size in Nucleate boiling

Views: 3,926

Posted By Bali

Hi Sam, it is really simple, just do some volume...

Hi Sam, it is really simple, just do some volume integral with the volume fraction field. Assume that alpha = 0 is gas when alpha = 1 is liquid.

1. calculator. input 1-alpha.
2. open the...

Forum: OpenFOAM Running, Solving & CFD

June 3, 2020, 05:17

Replies: 42

Bubble is not increasing in size in Nucleate boiling

Views: 3,926

Posted By Bali

I havent used of-7 but maybe add this line at the...

I havent used of-7 but maybe add this line at the end of the controldict file is helpful

libs ("libutilityFunctionObjects.so");

Forum: OpenFOAM Running, Solving & CFD

June 3, 2020, 04:49

Replies: 42

Bubble is not increasing in size in Nucleate boiling

Views: 3,926

Posted By Bali

Hi Sam, if there is only one bubble in your case,...

Hi Sam, if there is only one bubble in your case, you can use paraview to get the bubble diameter with respect to time easily. of course, write some codes in the controlDict file can plot the...

Forum: OpenFOAM Running, Solving & CFD

December 8, 2019, 23:57

Replies: 42

Bubble is not increasing in size in Nucleate boiling

Views: 3,926

Posted By Bali

ha? I have uploaded it in the last reply. maybe...

ha? I have uploaded it in the last reply. maybe pm me your email address so I can send it to you

Forum: OpenFOAM Running, Solving & CFD

December 8, 2019, 23:53

Replies: 42

Bubble is not increasing in size in Nucleate boiling

Views: 3,926

Posted By Bali

Hi Sam, I find a case regarding single bubble...

Hi Sam, I find a case regarding single bubble growth in superheated liquid,which can be run with interThermalPhaseChangeFoam. 1/8 of the bubble is simulated without the wedge boundary. check it...

Forum: OpenFOAM Running, Solving & CFD

December 8, 2019, 23:35

Replies: 42

Bubble is not increasing in size in Nucleate boiling

Views: 3,926

Posted By Bali

oh, I've seen this paper before, the solver they...

oh, I've seen this paper before, the solver they used is the evapVOFHardt I think. But you can use the validation case for the interThermalPhaseFoam solver. In Kunkelmann's PhD dissertation this case...

Forum: OpenFOAM Running, Solving & CFD

December 8, 2019, 21:56

Replies: 42

Bubble is not increasing in size in Nucleate boiling

Views: 3,926

Posted By Bali

Hi Sam, sorry I am a little confused about...

Hi Sam,

sorry I am a little confused about your case. 1/4 of the bubble will be simulated. So why using axis-symmetry? when using the axis boundary, I think the wedge boundary condition might be...

Forum: OpenFOAM Running, Solving & CFD

December 7, 2019, 23:40

Replies: 42

Bubble is not increasing in size in Nucleate boiling

Views: 3,926

Posted By Bali

OK. but I guess "symmetryPlane" might be...

OK. but I guess "symmetryPlane" might be better

Forum: OpenFOAM Running, Solving & CFD

December 7, 2019, 23:33

Replies: 42

Bubble is not increasing in size in Nucleate boiling

Views: 3,926

Posted By Bali

hi Sam, I have checked your files. Here some...

hi Sam,

I have checked your files. Here some points:

1. why the "base" boundary is applied with "symmetry"? if it is a base wall boundary, "symmetry" is not appropriate.

2. I guess you can...

Forum: OpenFOAM Running, Solving & CFD

December 4, 2019, 00:22

Replies: 42

Bubble is not increasing in size in Nucleate boiling

Views: 3,926

Posted By Bali

Hi, Sam it will be good to check your case...

Hi, Sam

it will be good to check your case if can upload it.

Best

Forum: OpenFOAM Running, Solving & CFD

December 3, 2019, 23:10

Replies: 42

Bubble is not increasing in size in Nucleate boiling

Views: 3,926

Posted By Bali

I think there is a tutorial case in...

I think there is a tutorial case in interThermalPhaseChangeFoam for single bubble growth.
BTW, the solver evapVOFHardt based on of231 is also useful for bubble growth simulation.
It should be noted...

Forum: OpenFOAM Running, Solving & CFD

September 17, 2019, 01:37

Replies: 42

Bubble is not increasing in size in Nucleate boiling

Views: 3,926

Posted By Bali

hi FaRa, could you upload your case files so...

hi FaRa,
could you upload your case files so that we can see where the problem is

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