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July 7, 2015, 05:30 |
Only water pass through with cyclic boundary
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#1 |
New Member
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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 to use fan boundary by reference. but It seems that fan boundary couldn't set to vectorField U boundary. I had no longer know what to do. Please help me. Regard, kkk Last edited by kkk; July 8, 2015 at 03:14. |
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July 7, 2015, 07:13 |
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#2 |
Senior Member
Dongyue Li
Join Date: Jun 2012
Location: Beijing, China
Posts: 844
Rep Power: 18 |
Hello,
Do u wanna simulate fully developed turbulence? U can try boundaryFoam. It uses average velocity with two cyclic boundaries. Quite simple and fast Best,
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July 8, 2015, 03:06 |
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#3 |
New Member
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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 boundary. I attached some cases that I want to achieve. Here is a interFoam's simple model condition. simpleModel.jpg Following is result with usual cyclic boundary. airInlet_usualCyclic.gif But I don't want let air pass through cyclic.(Here I changed cyclic BC to wall BC actually.) airInlet_idealCustomCyclic.gif Only water pass through cyclic boundary is my ideal. waterInlet_idealCustomCyclic.gif Regards, kkk |
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February 24, 2016, 14:49 |
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#4 |
New Member
Timucin Kislak
Join Date: Feb 2016
Location: Germany
Posts: 20
Rep Power: 10 |
Hi Kenyoh,
have you found a solution for the boundary conditions? I need exactly the same. But iny my case i want the gas to pass through. Best regards, Timucin |
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March 21, 2016, 21:56 |
Only water pass through with cyclic boundary
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#5 |
New Member
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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. I am modifying valiable's type of jump_ from scalarField to vectorField in JumpCyclic and fixedJump. Actually, it has not be working well yet. |
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March 22, 2016, 02:13 |
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#6 |
New Member
Timucin Kislak
Join Date: Feb 2016
Location: Germany
Posts: 20
Rep Power: 10 |
Hi kenyoh,
i don't know if this thread could help you, but take a look at it: http://www.cfd-online.com/Forums/ope...condition.html Best regards, Timucin |
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March 22, 2016, 02:57 |
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#7 |
New Member
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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 have to use custome cyclic. I am checking custome cyclic boundarys of OFv30+. I wonder if there are some custome cyclic dealing vectorField jump or something... |
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Tags |
custom cyclic boundary, interfoam, only water pass through, openfoam 2.1.x |
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