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Search took 0.00 seconds. Search: Posts Made By: ngj
Forum: OpenFOAM Running, Solving & CFD October 18, 2010, 15:08
Replies: 58
Views: 8,535
Posted By ngj
Hi The source was deleted some time ago, due...

Hi

The source was deleted some time ago, due to the above mentioned errors. No new version is yet publicly available.

Best regards

Niels
Forum: OpenFOAM Running, Solving & CFD May 7, 2009, 12:42
Replies: 58
Views: 8,535
Posted By ngj
Hi all I have been in the process of...

Hi all

I have been in the process of reimplementing the above mentioned wave boundary conditions into a completely new structure, which for instance make use the runTime selectable tables.

In...
Forum: OpenFOAM Running, Solving & CFD March 25, 2009, 05:26
Replies: 58
Views: 8,535
Posted By ngj
Hi Mark Thanks for sharing your...

Hi Mark

Thanks for sharing your implementations.

Yes, I agree wih what you have done in your code. Just to summarize for everyone else (using Stokes first order theory as an example, developed...
Forum: OpenFOAM Running, Solving & CFD March 21, 2009, 17:36
Replies: 58
Views: 8,535
Posted By ngj
Hi Mark I reread your post, and it is clear...

Hi Mark

I reread your post, and it is clear that an implementation, which takes the direction of the gravity vector (i.e. X, Y or Z direction) into account, is the most favorable.

However, I...
Forum: OpenFOAM Running, Solving & CFD March 16, 2009, 07:25
Replies: 58
Views: 8,535
Posted By ngj
Thanks for that, it might not be to much of an...

Thanks for that, it might not be to much of an effort to make it generic. I will give it some thoughts.

Best regards,

Niels
Forum: OpenFOAM Running, Solving & CFD March 16, 2009, 07:10
Replies: 58
Views: 8,535
Posted By ngj
On spongelayers / relaxationzones

Hi Mark

I am glad it worked out for you! Though it is pretty weird that you 3D-cases doesn't work, as I have been running those several times without any problems.

With respect to the...
Forum: OpenFOAM Running, Solving & CFD March 12, 2009, 16:30
Replies: 58
Views: 8,535
Posted By ngj
Hi Mark I went into the ver

Hi Mark

I went into the version you are playing around with. After a little grepping I found that the line:

const fvsPatchField<scalar> & phip = ...
Forum: OpenFOAM Running, Solving & CFD March 11, 2009, 16:04
Replies: 58
Views: 8,535
Posted By ngj
Hi Mark My apologies, after

Hi Mark

My apologies, after submitting I regretted the tone in my post. I had been having problems for days with the wave BC with a non-consistent error. I found the bug and it is definitely...
Forum: OpenFOAM Running, Solving & CFD March 10, 2009, 12:15
Replies: 58
Views: 8,535
Posted By ngj
Hi Mark Yes, that is true,

Hi Mark

Yes, that is true, I did hardcode that some time ago. I am actually working on another branch of this BC now, so it is some time ago I looked into the code.

I believe you should be...
Forum: OpenFOAM Running, Solving & CFD January 12, 2009, 06:58
Replies: 58
Views: 8,535
Posted By ngj
----------------- I am thinki

-----------------
I am thinking of adding uniform flux BC in inlet based on your code. Do you think it is feasible?
-----------------

If you want to add a uniform flux inlet, then wouldn't...
Forum: OpenFOAM Running, Solving & CFD January 9, 2009, 04:27
Replies: 58
Views: 8,535
Posted By ngj
Hi Mark Thanks for the posi

Hi Mark

Thanks for the positive responsehttp://www.cfd-online.com/OpenFOAM_Discus/clipart/happy.gif

ad 1.: Since my last post I have discussed this with one of my supervisors. In...
Forum: OpenFOAM Running, Solving & CFD November 25, 2008, 13:19
Replies: 58
Views: 8,535
Posted By ngj
Hi Franziska Well, first of

Hi Franziska

Well, first of all, I need to admit that you do not need to have extensive knowledge in C++ to extend the code to cover arbitrary polygons, as my own experience back then was...
Forum: OpenFOAM Running, Solving & CFD October 17, 2008, 15:40
Replies: 58
Views: 8,535
Posted By ngj
Hi Nicola To be a little bi

Hi Nicola

To be a little bit more specific, you need to find a theory which takes the current into consideration when determining the dispersion relation, as the current will come in as a first...
Forum: OpenFOAM Running, Solving & CFD October 17, 2008, 11:26
Replies: 58
Views: 8,535
Posted By ngj
Hi Sorry for the late resp

Hi

Sorry for the late response, but I am currently out-of-sync with the forum and will continue to be so for some time.

@Nicola

I would locate an appropriate theory for wave and...
Forum: OpenFOAM Running, Solving & CFD October 4, 2008, 08:25
Replies: 58
Views: 8,535
Posted By ngj
Hi Under the options EXE_LI

Hi

Under the options EXE_LIBS add it in the following form:

-lsurfaceWavePressureFvPatchScalarField \
-lsurfaceWaveVelocityFvPatchVectorField

Enjoy your weekend,

Niels
Forum: OpenFOAM Running, Solving & CFD October 3, 2008, 09:33
Replies: 58
Views: 8,535
Posted By ngj
Well, they should be. Otherwis

Well, they should be. Otherwise there is a bug I have not tested for.

/ Niels
Forum: OpenFOAM Running, Solving & CFD October 3, 2008, 08:40
Replies: 58
Views: 8,535
Posted By ngj
Hi Are you sure, that you h

Hi

Are you sure, that you haven't applied the waveBC to a patch internally, as the boundary conditions are applied to a patch and not in the internal part of the domain.

/ Niels
Forum: OpenFOAM Running, Solving & CFD October 3, 2008, 07:20
Replies: 58
Views: 8,535
Posted By ngj
Sorry, that does not make sens

Sorry, that does not make sense, as internal generation of waves sound pretty weird. You need to elaborate on the problem, otherwise we will not be able to help you.
A screen-dump or similar would...
Forum: OpenFOAM Running, Solving & CFD October 3, 2008, 07:19
Replies: 58
Views: 8,535
Posted By ngj
Hi Waves are generated at x

Hi

Waves are generated at x=0 at default (a.k.a. hard-coded).

- Niels
Forum: OpenFOAM Running, Solving & CFD June 8, 2008, 11:47
Replies: 58
Views: 8,535
Posted By ngj
Hi Charlotte I have ended u

Hi Charlotte

I have ended up with setting the velocity in the air to zero in each time step, as discussed in [1] p. 11.

The reason for this is that I never got around to control the air...
Forum: OpenFOAM Running, Solving & CFD June 6, 2008, 03:03
Replies: 58
Views: 8,535
Posted By ngj
Hi Charlotte My initials ha

Hi Charlotte

My initials have been changed, so please replace "s001581" with "ngja" and you should be able to access the files.

Best regards,

Niels
Forum: OpenFOAM Running, Solving & CFD March 16, 2008, 14:24
Replies: 58
Views: 8,535
Posted By ngj
Hi The bug has now been cor

Hi

The bug has now been corrected and the boundary condition can be found following the link at the top of this thread.
A second order stokes wave has been implemented, which resulted in an...
Forum: OpenFOAM Running, Solving & CFD March 13, 2008, 06:14
Replies: 58
Views: 8,535
Posted By ngj
Hi Yann The componet() coun

Hi Yann

The componet() counts from 0, thus 0->x, 1->y and 2->z

Hope ypu have been getting it to work.

- Niels
Forum: OpenFOAM Running, Solving & CFD March 11, 2008, 14:21
Replies: 58
Views: 8,535
Posted By ngj
Hi While implementing a sec

Hi

While implementing a second order stokes, I found that I have made a bug in the pressure gradient.

Corrected version will be uploaded as soon as possible.

Hope you haven't trusted...
Forum: OpenFOAM Running, Solving & CFD March 10, 2008, 06:03
Replies: 58
Views: 8,535
Posted By ngj
Hi Yann I tried to remove m

Hi Yann

I tried to remove my BCs from the compilation of interFoam. When I did that I got the same error as yours. Though compiling with the libraries does not seems to give any problems.

I...
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