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Search took 0.00 seconds. Search: Posts Made By: g.redondo
Forum: OpenFOAM Running, Solving & CFD June 4, 2010, 17:17
Replies: 322
Views: 100,063
Posted By g.redondo
Hi yannH, I would refine the mesh much more....

Hi yannH,

I would refine the mesh much more. Try to use a volumetric control at the free surface so you have more cells in there.

Enjoy,

Gonzalo
Forum: OpenFOAM Running, Solving & CFD April 24, 2010, 19:47
Replies: 322
Views: 100,063
Posted By g.redondo
Hi Eric, One more thing. Hope I'm not asking...

Hi Eric,

One more thing. Hope I'm not asking too much. Could you explain me how to convert in 1.6 back to dynamic pressure?

Best regards,

Gonzalo
Forum: OpenFOAM Running, Solving & CFD April 24, 2010, 09:18
Replies: 322
Views: 100,063
Posted By g.redondo
Thank you Eric, It would be nice to know...

Thank you Eric,

It would be nice to know what the developers think about our problems with total pressure. I will give up with p and go back to 1.5, but I don't like to be working with something...
Forum: OpenFOAM Running, Solving & CFD April 23, 2010, 13:11
Replies: 322
Views: 100,063
Posted By g.redondo
What's the status of 1.6 validation? Has anyone...

What's the status of 1.6 validation? Has anyone managed to get a good agreement between 1.5 and 1.6 results with the new p formulation?

Eric, are you still running in 1.5? If the trend is to keep...
Forum: OpenFOAM Running, Solving & CFD December 16, 2009, 11:06
Replies: 322
Views: 100,063
Posted By g.redondo
k and omega too

As I was pasting nut and nutilda I will do the same with omega and k just in case someone finds the problem.

/*--------------------------------*- C++ -*----------------------------------*\
|...
Forum: OpenFOAM Running, Solving & CFD December 16, 2009, 09:08
Replies: 322
Views: 100,063
Posted By g.redondo
Forces

Well, this is how thing are going today...

First of all, many thanks to Matteo who came up yesterday with a modification in the interFoam solver to make it work with the new force function. Now I...
Forum: OpenFOAM Running, Solving & CFD December 16, 2009, 08:56
Replies: 322
Views: 100,063
Posted By g.redondo
Hi hassan, I see that you're using Fluent....

Hi hassan,

I see that you're using Fluent. In order to keep things focused, it would be great if you can copy your post and make a new thread about it in the Fluent forum. There's lot of people...
Forum: OpenFOAM Running, Solving & CFD December 15, 2009, 11:10
Replies: 322
Views: 100,063
Posted By g.redondo
Hi Matteo, You mean nut, right? I have the...

Hi Matteo,

You mean nut, right? I have the following:

HULL
{
type nutWallFunction;
value uniform 0;
}
Forum: OpenFOAM Running, Solving & CFD December 15, 2009, 07:27
Replies: 322
Views: 100,063
Posted By g.redondo
Hi Eric, I completely agree with you about...

Hi Eric,

I completely agree with you about masking dynamic pressure convergence.

You can check U and p in a previous post, but I think they're correct. K, Omega and nut are the same as for 1.5....
Forum: OpenFOAM Running, Solving & CFD December 15, 2009, 07:04
Replies: 322
Views: 100,063
Posted By g.redondo
Wigley Investigation

Hi all,

Still struggling with this. The following is my current situation after another week of investigations on this simulation.

These are the investigations I've done so far:

- Simulation...
Forum: OpenFOAM Running, Solving & CFD December 11, 2009, 04:53
Replies: 322
Views: 100,063
Posted By g.redondo
I know, but I would expect it to be closer, as it...

I know, but I would expect it to be closer, as it is in CCM with the same mesh (Fpx ~ -0.013). I tried the same settings with a 286K, a 514K and a 915K mesh. All results are pretty much the same.

...
Forum: OpenFOAM Running, Solving & CFD December 10, 2009, 08:14
Replies: 322
Views: 100,063
Posted By g.redondo
Wigley with buoyantPressure BC

Ok, thanks Ahmed.

According to Jean-Peer I run the simulation with buoyantPressure BC at the hull.

The resulting forces are the following:

Fpx = -0.162647
Fpz = 25.119922
Fvx = -0.567550...
Forum: OpenFOAM Running, Solving & CFD December 9, 2009, 12:27
Replies: 322
Views: 100,063
Posted By g.redondo
U and p

Hi all,

Still running, it is slightly less but not sure if enough. I will post results when (and if) it gets to 5s (this night here in Spain).

The only difference I think I have compared to...
Forum: OpenFOAM Running, Solving & CFD December 9, 2009, 10:56
Replies: 322
Views: 100,063
Posted By g.redondo
Ok, got it. I will try with buoyantPressure...

Ok, got it.

I will try with buoyantPressure at the hull and I'll post the results here as soon as possible, if any :)

Gonzalo
Forum: OpenFOAM Running, Solving & CFD December 9, 2009, 10:31
Replies: 322
Views: 100,063
Posted By g.redondo
Thanks for the quick reply, I appreciated it. It...

Thanks for the quick reply, I appreciated it. It is also good to know that it's working for you.

I'm using zerogradient for the pressure on the hull. Outlet is buoyantPressure. Should it also be...
Forum: OpenFOAM Running, Solving & CFD December 9, 2009, 06:12
Replies: 322
Views: 100,063
Posted By g.redondo
Hi Jean-Peer, You're correct about the...

Hi Jean-Peer,

You're correct about the original force function, but I also made a filter with paraview and the pressure forces are pretty much the same (neglecting aerodynamics). Would be nice to...
Forum: OpenFOAM Running, Solving & CFD December 8, 2009, 12:30
Replies: 322
Views: 100,063
Posted By g.redondo
Wigley Fn=0.316

Hi all,

I wonder how are you doing with OF1.6 for free surface flows. I was able to run robust simulations, but the forces are way off the experimental data, about twice:

Pressure Forces:
Fpx...
Forum: OpenFOAM Running, Solving & CFD November 30, 2009, 10:07
Replies: 322
Views: 100,063
Posted By g.redondo
Thanks mks, I forgot to post how I did it,...

Thanks mks,

I forgot to post how I did it, but the problem is already solved pretty much doing what you mentioned. The only thing I'm missing is how to separate hydrodynamic and aerodynamic...
Forum: OpenFOAM Running, Solving & CFD November 23, 2009, 14:34
Replies: 322
Views: 100,063
Posted By g.redondo
wigley simulation with OF1.6

Interfoam has been updated in version 1.6 to use p instead of pd. I've been trying to update the wigley case to 1.6 without success. Did anyone tried to run it in 1.6? Any help would be greatly...
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