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Search: Posts Made By: immortality
Forum: OpenFOAM Running, Solving & CFD April 16, 2013, 11:41
Replies: 19
Views: 1,518
Posted By immortality
thank you dear Bernard. Only a small question...

thank you dear Bernard.
Only a small question about internalField and zeroGradient you mentioned at a good time! In internalField the value in the boundary cell "center" is replaced in the face of...
Forum: OpenFOAM Running, Solving & CFD April 16, 2013, 06:04
Replies: 19
Views: 1,518
Posted By immortality
a question.when we assign boundary values does it...

a question.when we assign boundary values does it set in boundary cell face or center?it seems U is located in face,right?then what about p and T?
And also whats the usge of faceSets and...
Forum: OpenFOAM Running, Solving & CFD April 15, 2013, 14:12
Replies: 19
Views: 1,518
Posted By immortality
oh dear Niels I grasped it now.we should imagine...

oh dear Niels I grasped it now.we should imagine cells as a cube not a rectangle.what a mistake!
then in the example we have 8 vertices and three cell centers.
I always imagine it as rectangles!...
Forum: OpenFOAM Running, Solving & CFD April 15, 2013, 14:03
Replies: 19
Views: 1,518
Posted By immortality
I don't figure out how do you count vertices ?and...

I don't figure out how do you count vertices ?and also cell centers.
how vertex numbers wil be twice cell center numbers?
I'm totally mixed up:confused:
Forum: OpenFOAM Running, Solving & CFD April 15, 2013, 13:52
Replies: 19
Views: 1,518
Posted By immortality
could you please give me more clarification?

could you please give me more clarification?
Forum: OpenFOAM Running, Solving & CFD April 15, 2013, 05:57
Replies: 19
Views: 1,518
Posted By immortality
in parafoam we have 3 layers.is the middle main...

in parafoam we have 3 layers.is the middle main ?you mean 4 vertices in 3 layers?i think we should have 3*4 vertices not 2*4.wrong?
Then will it be correct if use toFace function?
Thanks.
Forum: OpenFOAM Running, Solving & CFD April 14, 2013, 17:30
Replies: 19
Views: 1,518
Posted By immortality
thanks.but i didn't figure out what you mean by...

thanks.but i didn't figure out what you mean by "its more than twice as large as..." it seems vertices be only one number more than numbers of cell faces.
If we imagine a patch consisting of 3 cells...
Forum: OpenFOAM Running, Solving & CFD April 14, 2013, 13:20
Replies: 19
Views: 1,518
Posted By immortality
thank you for explaining faceSets and faceZones...

thank you for explaining faceSets and faceZones clearly.
but I have doubt on pts() yet.in contrib groovyBC an example is as so:
inlet
{
type groovyBC;
...
Forum: OpenFOAM Running, Solving & CFD April 14, 2013, 10:38
Replies: 19
Views: 1,518
Posted By immortality
thanks.then usage of pts() is restricted for...

thanks.then usage of pts() is restricted for example in moving meshes.right?
another question that maybe not related but I value the time to ask about difference between face zones and face sets or...
Forum: OpenFOAM Running, Solving & CFD April 14, 2013, 07:33
Replies: 19
Views: 1,518
Posted By immortality
hi dear Niels thanks But I used pts in a...

hi dear Niels
thanks
But I used pts in a condition on y,does it have effect on fields?what are volume fields?
When can use pts?
Forum: OpenFOAM Running, Solving & CFD April 12, 2013, 13:29
Replies: 19
Views: 1,518
Posted By immortality
why pts() doesn't work?

why does the statement:
"0<=pos().y && pos().y<=.0038 ? vector(0,0,0) : vector(mag(internalField(U).x),0,0)";
does work.but doesn't with pts()?
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