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Forum: OpenFOAM Running, Solving & CFD June 14, 2008, 03:56
Replies: 39
Views: 5,826
Posted By ngj
Please note the 'x' after u_0.

Please note the 'x' after u_0.

- Niels
Forum: OpenFOAM Running, Solving & CFD June 13, 2008, 10:14
Replies: 39
Views: 5,826
Posted By ngj
Hi I am wondering if we are

Hi

I am wondering if we are chasing something which is not present in the solution. Have found the analytical solution of the potential around a cylinder, and it writes:

phi = -u_0 x (1 +...
Forum: OpenFOAM Running, Solving & CFD June 13, 2008, 03:46
Replies: 39
Views: 5,826
Posted By ngj
Well, if you into the source o

Well, if you into the source of potentialFoam, you will find that the pressure equation is not solves as

laplaian(p) = 0

but

laplacian(p) = div(phi)

which should be the same as...
Forum: OpenFOAM Running, Solving & CFD June 9, 2008, 03:40
Replies: 39
Views: 5,826
Posted By ngj
Hi Roberto The reason p=0 i

Hi Roberto

The reason p=0 is that you do not write the pressure field by default from potentialFoam. Execute the solver as follows:

potentialFoam . cylinder -writep

Best regards,
...
Forum: OpenFOAM Running, Solving & CFD May 27, 2008, 15:18
Replies: 39
Views: 5,826
Posted By ngj
Hi I have hardly ever solv

Hi

I have hardly ever solved any potential flow problems, but if you take a book in Complex number then there will probably several examples on the use of conformal mapping, and conformal...
Forum: OpenFOAM Running, Solving & CFD May 27, 2008, 03:58
Replies: 39
Views: 5,826
Posted By ngj
Hi Roberto If you are going

Hi Roberto

If you are going to do viscous modeling, then why do you not use any of the many viscous solvers in the OF-package. Superimposing the viscous part on the potential flow is probably...
Forum: OpenFOAM Running, Solving & CFD May 23, 2008, 17:28
Replies: 39
Views: 5,826
Posted By ngj
Hi Roberto Just give it a t

Hi Roberto

Just give it a try, we might be able to find a solution.

- Niels
Forum: OpenFOAM Running, Solving & CFD May 2, 2008, 07:34
Replies: 39
Views: 5,826
Posted By ngj
Hihi, I think we are talking i

Hihi, I think we are talking in two different direction.
I am not interested in moving the mesh, but in movingWallVelocity there is call to both old and present face-locations, see below, thus...
Forum: OpenFOAM Running, Solving & CFD May 2, 2008, 03:28
Replies: 39
Views: 5,826
Posted By ngj
Hi I didn't know it existe

Hi

I didn't know it existed. Thanks for the infohttp://www.cfd-online.com/OpenFOAM_Discus/clipart/happy.gif

I have been looking at the source, and it deals with present and old...
Forum: OpenFOAM Running, Solving & CFD May 1, 2008, 13:42
Replies: 39
Views: 5,826
Posted By ngj
Hi Roberto As you said in t

Hi Roberto

As you said in the email, you are not completely sure how to compile, so I will make a small walk-through:

First here is the boundary condition.

...
Forum: OpenFOAM Running, Solving & CFD May 1, 2008, 13:38
Replies: 39
Views: 5,826
Posted By ngj
Hi Roberto As you said in t

Hi Roberto

As you said in the email, you are not completely sure how to compile, so I will make a small walk-through:

First here is the boundary condition.



Unpack the archive and...
Forum: OpenFOAM Running, Solving & CFD April 29, 2008, 14:13
Replies: 39
Views: 5,826
Posted By ngj
Hi Roberto You need to prog

Hi Roberto

You need to program a new boundary condition (at least that is what I think). The programming is rather simple, and I have something at another computer, which might help you. The...
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