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December 24, 2012, 08:18 |
droplet motion on incline plane
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#1 |
Member
Indrajit
Join Date: Nov 2012
Posts: 33
Rep Power: 13 |
Hi all,
I want to simulate droplet motion on inclined plane. Please guide me where can I find the relevant cases. I have done the dam break tutorial. Regards, Indrajit |
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December 24, 2012, 12:03 |
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#2 |
Senior Member
Bernhard
Join Date: Sep 2009
Location: Delft
Posts: 790
Rep Power: 22 |
Ehm, you will have to set up te cases yourself. First make a mesh, then initiliaze the droplet (setFields or funkySetFields), change the direction of g in constant/g and run the simulation. Where are you stuck in this process?
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December 24, 2012, 13:21 |
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#3 |
Member
Indrajit
Join Date: Nov 2012
Posts: 33
Rep Power: 13 |
Hi,
I am stuck at initializing the droplet, using the funkysetfields .Also I wish to implement the dynamic contact angle model in OpenFoam. Please let me know where could i get a similar case so that I could edit and use it. Regards, Indrajit |
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February 10, 2013, 15:37 |
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#4 | |
Member
Guifan Li
Join Date: Apr 2011
Location: New York City, U.S.
Posts: 96
Rep Power: 15 |
Quote:
I am new to the multiphase case and I want to simulate the the droplet case as well. For the droplet, do you suggestion I use some software like Gmsh to create a sphere or I can directly use set Fields or funkySetFields to create it? Btw, in the openfoam wiki, the link provided is not working, so I am not sure where I can download the up-to-date version of funkySetfields? Best regards, James |
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February 10, 2013, 15:49 |
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#5 |
Senior Member
Bernhard
Join Date: Sep 2009
Location: Delft
Posts: 790
Rep Power: 22 |
I would not suggest using the mesh to make your droplet, as it is necessary for the initial state as well. For funkySetField I am certain that you can select a region of cells based on an expression. Latest versions are now included in swak4Foam.
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February 10, 2013, 15:52 |
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#6 | |
Member
Guifan Li
Join Date: Apr 2011
Location: New York City, U.S.
Posts: 96
Rep Power: 15 |
Quote:
Or I don't need to use Gmsh at all? Kind regards, James |
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February 10, 2013, 15:54 |
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#7 |
Senior Member
Bernhard
Join Date: Sep 2009
Location: Delft
Posts: 790
Rep Power: 22 |
It depends on what type of solver you want to use of course. But if you stick to a volume of fluid solver (interFoam), then I would just mesh with blockMesh and define the droplet with funkySetFields (or maybe even regular setFields if possible, not sure about that)
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February 10, 2013, 16:07 |
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#8 | ||||
Member
Guifan Li
Join Date: Apr 2011
Location: New York City, U.S.
Posts: 96
Rep Power: 15 |
Quote:
One another question is that: I have build up a box with the leftwall, rightwall, lowerwall, frontwall, and backwall using Gmsh, and I use the setFields to create a sphere in the liquids, but the bubble burst before it rises to the surface of the water and the water leaks out from the leftWall Even I define the velocity of BC of all the walls with U=fixedValue {0 0 0}. The boundary conditions are as follows alpha1.org Quote:
p_rgh Quote:
Quote:
Kind regards, James |
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