Forum: OpenFOAM Running, Solving & CFD
October 9, 2008, 12:49
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Replies: 50
Views: 6,422
Dear foamers,
After I imple
Dear foamers,
After I implement my boundary, the simulation goes on for several minutes, but then I get an error, please allow me to post it here, to see if some friends have experience dealing...
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Forum: OpenFOAM Running, Solving & CFD
October 6, 2008, 06:12
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Replies: 50
Views: 6,422
It is solved about how to get
It is solved about how to get the diameter for a circle patch.
If anyone needs this, just write to me: zhoubinwx@hotmail.com
let me go on with the boundary condition setting, and hope to...
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Forum: OpenFOAM Running, Solving & CFD
October 5, 2008, 15:38
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Replies: 50
Views: 6,422
Could I ask in OpenFOAM, which
Could I ask in OpenFOAM, which plane we are using for the 2-D models? Is it in the front(z=0)? in the back(z=1e-5)? or in the middle plane(5e-6)?
Best regards,
Bin
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Forum: OpenFOAM Running, Solving & CFD
October 4, 2008, 12:12
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Replies: 50
Views: 6,422
Today I compared the Gmsh poin
Today I compared the Gmsh points coordinates with the file "points", at last I am sure:
const vectorField & pp = patch().Cf();
could return the middle point of each mesh face.
Then I...
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Forum: OpenFOAM Running, Solving & CFD
October 3, 2008, 04:26
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Replies: 50
Views: 6,422
After test, I know that my way
After test, I know that my way to get the point coordinate is wrong,
const vectorField & pp = patch().Cf();
I must find a way out.
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Forum: OpenFOAM Running, Solving & CFD
October 2, 2008, 15:49
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Replies: 50
Views: 6,422
Dear all,
About the 1st que
Dear all,
About the 1st question my post on Sep 21, that is:
The three point coordinates are (4.41226e-05,5.79779e-05), (4.71079e-05,6.24456e-05), (4.2272e-05,5.92143e-05);
The circle...
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Forum: OpenFOAM Running, Solving & CFD
September 27, 2008, 11:35
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Replies: 50
Views: 6,422
Dear all,
When I run the ca
Dear all,
When I run the case with my boundary, I get:
DILUPBiCG: Solving for Ux: solution singularity
DILUPBiCG: Solving for Uy: solution singularity
DICPCG: Solving for p: ...
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Forum: OpenFOAM Running, Solving & CFD
September 23, 2008, 15:52
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Replies: 50
Views: 6,422
Dear all,
I am glad that I
Dear all,
I am glad that I could make my boundary condition work, but only the first step.
I need your help because I have an error:
--------------------------- ...
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Forum: OpenFOAM Running, Solving & CFD
September 22, 2008, 06:21
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Replies: 50
Views: 6,422
I have checked the programmerG
I have checked the programmerGuide.pdf again, I get:
The inner product of two vectors a and b is commutative and produces a scalar
s = a • b where
s = aibi = a1b1 + a2b2 + a3b3
...
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Forum: OpenFOAM Running, Solving & CFD
September 22, 2008, 05:56
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Replies: 50
Views: 6,422
Dear all,
I find it is str
Dear all,
I find it is strange, because when I use the existing partialSlip boundary file as a base, I could not use the operator "&" in
vectorField iPt=(this->patchInternalField())-n*(n &...
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Forum: OpenFOAM Running, Solving & CFD
September 22, 2008, 03:06
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Replies: 50
Views: 6,422
Hi, share with you.
Solutio
Hi, share with you.
Solution:
in Make/files: replace "circleSlipFvPatchField.C" with "circleSlipFvPatchFields.C"
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Forum: OpenFOAM Running, Solving & CFD
September 22, 2008, 02:26
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Replies: 50
Views: 6,422
Hi, deal all,
In order to s
Hi, deal all,
In order to solve this problem, I copy the partialSlip directory into name-1.5/application, and change "partial" into "circle", add Make directory, in which we have the "files" and...
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Forum: OpenFOAM Running, Solving & CFD
September 21, 2008, 16:15
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Replies: 50
Views: 6,422
Dear all,
The second proble
Dear all,
The second problem is solved without "reference" to the vectorField n.
Now I have a severe problems, when I run my case with simpleFoam and this boundary condition is implemented....
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Forum: OpenFOAM Running, Solving & CFD
September 21, 2008, 10:31
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Replies: 50
Views: 6,422
Dear all,
When I apply my b
Dear all,
When I apply my boundary, the simulation suddenly stops. I check the output value, and get:
1. The three point coordinates are (4.41226e-05,5.79779e-05),...
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Forum: OpenFOAM Running, Solving & CFD
September 19, 2008, 16:10
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Replies: 50
Views: 6,422
Hi,
Let allow me to answer
Hi,
Let allow me to answer myself for this problem.
In the .C file, replace "n" with "nHat".
Best regards,
Bin
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Forum: OpenFOAM Running, Solving & CFD
September 19, 2008, 13:06
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Replies: 50
Views: 6,422
Hello,
I find one "possible
Hello,
I find one "possible" way to define a member function for the gradient of tangential velocity: grad(u_tangential), but still I need your suggestions if possible.
In the .H file ...
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Forum: OpenFOAM Running, Solving & CFD
September 19, 2008, 06:06
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Replies: 50
Views: 6,422
Dear all,
I find the functi
Dear all,
I find the function of snGrad ()
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//- Return gradient at boundary
tmp<vectorfield> circleSlipFvPatchVectorField::snGrad() const
{
...
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Forum: OpenFOAM Running, Solving & CFD
September 18, 2008, 10:54
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Replies: 50
Views: 6,422
Dear all,
I could see that
Dear all,
I could see that fvm::grad(phi) could be used in the solver/applications.
Therefore can I build a file named "tanUGrad.H"
-------------------------
fvPatchTensorField...
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Forum: OpenFOAM Running, Solving & CFD
September 18, 2008, 10:07
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Replies: 50
Views: 6,422
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Forum: OpenFOAM Running, Solving & CFD
September 18, 2008, 10:06
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Replies: 50
Views: 6,422
Hello,
Can I show my think
Hello,
Can I show my thinking:
1. is it possible to use the one as the solver in the boundary condition, but not solver. Like:
-------------------------
fvVectorMatrix UEqn
( ...
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Forum: OpenFOAM Running, Solving & CFD
September 18, 2008, 06:05
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Replies: 50
Views: 6,422
Hi Niels,
You are so kind,
Hi Niels,
You are so kind, and what you said is valuable for me.
I do this one step by one step, I hope I could deserve my carefulness.
When I compile, I get: ...
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Forum: OpenFOAM Running, Solving & CFD
September 17, 2008, 12:10
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Replies: 50
Views: 6,422
Dear all,
I know it is not
Dear all,
I know it is not good to ask so many questions. I have followed one principle "problem is important when we compile".
Now please allow me to ask one more questions (till now the...
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Forum: OpenFOAM Running, Solving & CFD
September 17, 2008, 06:12
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Replies: 50
Views: 6,422
Dear Niels and all friends her
Dear Niels and all friends here,
I am glad to tell you that I find great pleasure writing my own code now, it is near completed.
Now pls allow me to ask a question:
Briefly: How to...
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Forum: OpenFOAM Running, Solving & CFD
September 12, 2008, 10:21
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Replies: 50
Views: 6,422
Hi Niels,
http://www.cfd-on
Hi Niels,
http://www.cfd-online.com/OpenFOAM_Discus/clipart/happy.gifhttp://www.cfd-online.com/OpenFOAM_Discus/clipart/happy.gifhttp://www.cfd-online.com/OpenFOAM_Discus/clipart/happy.gif
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