Forum: OpenFOAM Running, Solving & CFD
June 2, 2015, 11:48
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Replies: 42
Views: 6,504
Hallo Fan Fei,
I am sorry, but your question...
Hallo Fan Fei,
I am sorry, but your question is too detailed for me to be able to help. Since you already have moving meshes, I assume that you merely have a bug in your sand sliding model.
If...
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Forum: OpenFOAM Running, Solving & CFD
May 27, 2015, 02:32
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Replies: 42
Views: 6,504
Well, the procedure is to consider one face at...
Well, the procedure is to consider one face at the time until you have reached a state, where all faces are less than the sliding angle. Therefore, I do not see any problems in which value to assign...
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Forum: OpenFOAM Running, Solving & CFD
May 26, 2015, 14:01
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Replies: 42
Views: 6,504
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Forum: OpenFOAM Running, Solving & CFD
May 23, 2015, 06:28
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Replies: 42
Views: 6,504
Hi Fan Fei,
Yes, you will need a sand...
Hi Fan Fei,
Yes, you will need a sand sliding module for most problems (especially scour). Your procedure sounds good, but I do not see, why you need to make the mapping between faMesh and fvMesh...
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Forum: OpenFOAM Running, Solving & CFD
May 22, 2015, 10:53
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Replies: 42
Views: 6,504
Hi Fan Fei,
What you want to achieve is all...
Hi Fan Fei,
What you want to achieve is all available through the mesh-connectivity information, e.g.
mesh.faceCells();
mesh.facePoints();
// ... etc
But it requires some working to...
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Forum: OpenFOAM Running, Solving & CFD
May 22, 2015, 02:57
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Replies: 42
Views: 6,504
Yes, you can consider the sand sliding as a...
Yes, you can consider the sand sliding as a limiter.
(i) Solve the Exner equation, (ii) interpolation to the vertices, (iii) perform sand sliding on the new (but not moved points) and (iv) then...
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Forum: OpenFOAM Running, Solving & CFD
May 22, 2015, 01:26
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Replies: 42
Views: 6,504
Hallo Fan Fei,
Thank you.
Yes, that is...
Hallo Fan Fei,
Thank you.
Yes, that is the overall methodology, but you do not need to move the mesh before the sand slide. You could simply use the information from the Exner equation (and...
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Forum: OpenFOAM Running, Solving & CFD
April 28, 2015, 15:54
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Replies: 42
Views: 6,504
Hallo Lu,
I have never seen that type of...
Hallo Lu,
I have never seen that type of problem (with non-periodic domains), and fac::div does obey to a zero gradient. I have very recently used a zero gradient on a bed load field and it worked...
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Forum: OpenFOAM Running, Solving & CFD
March 27, 2015, 07:33
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Replies: 42
Views: 6,504
Hallo Fan Fei,
I have recently had an...
Hallo Fan Fei,
I have recently had an article accepted, where I describe a 3D geometrical sand sliding routine:
http://onlinelibrary.wiley.com/doi/10.1002/fld.4015/abstract
Note that this...
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Forum: OpenFOAM Running, Solving & CFD
April 22, 2013, 15:10
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Replies: 42
Views: 6,504
No, I merely had three files, which I called...
No, I merely had three files, which I called something like flux, flux0 and flux00, and then I implemented all of the book-keeping myself.
The main reason for this is that I used period...
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Forum: OpenFOAM Running, Solving & CFD
April 20, 2013, 04:01
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Replies: 42
Views: 6,504
Hi Aka,
It is a well know problem,...
Hi Aka,
It is a well know problem, especially for non-scour problems, so you might need a set of stabilising mechanisms, such as sand slide and numerical filtering.
I am solving the Exner...
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Forum: OpenFOAM Running, Solving & CFD
May 18, 2011, 09:27
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Replies: 42
Views: 6,504
Hi Arne
Yes, I have used the FAM framework,...
Hi Arne
Yes, I have used the FAM framework, which offers some advances. It is a very long implementation, thus I can hardly put is simply into an email. The model description for sediment...
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Forum: OpenFOAM Running, Solving & CFD
February 22, 2010, 05:39
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Replies: 42
Views: 6,504
Hi all
I have now been working on the...
Hi all
I have now been working on the morphological updating routine, and I would just recommend to all of you to do it in the framework of FAM, as the methods implemented into FAM are tailored to...
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Forum: OpenFOAM Running, Solving & CFD
July 7, 2008, 11:13
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Replies: 42
Views: 6,504
Hi Xiaofeng, Hrv and others
Hi Xiaofeng, Hrv and others
@Xiaofeng:
I have tried locating your article, but I have only been able to find it on your web-page. Is it in press?
@All
I have had a look at the...
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Forum: OpenFOAM Running, Solving & CFD
July 3, 2008, 12:18
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Replies: 42
Views: 6,504
Hi Xiaofeng
Yes, I am indee
Hi Xiaofeng
Yes, I am indeed going to solve the Exner equation, but as I am going to look at self-formed features, i.e. no presence of structures, I'll take your advise and solve it explicitly. ...
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Forum: OpenFOAM Running, Solving & CFD
July 3, 2008, 09:48
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Replies: 42
Views: 6,504
Hi Hrv
Thanks for the answe
Hi Hrv
Thanks for the answer, I'll look into it and look forward to the presentation in Milan.
I saw in another thread (2006) that the translation of Zeljko' Thesis was in working progress....
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Forum: OpenFOAM Running, Solving & CFD
July 3, 2008, 05:54
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Replies: 42
Views: 6,504
Hi All
I am considering to
Hi All
I am considering to change my tactics a little bit, thus right now I am working with primitivePatchInterpolation in OF-1.4.1.
My question is whether it is correct or not that the...
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Forum: OpenFOAM Running, Solving & CFD
June 26, 2008, 10:11
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Replies: 42
Views: 6,504
Hi all
I am going to couple
Hi all
I am going to couple a sediment transport evaluation with a morphological updating of the sediment bed. In contrast to the flow-equations the problem is purely 2-dimensional, as the bed...
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