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Forum: OpenFOAM Running, Solving & CFD December 3, 2010, 17:18
Replies: 85
Views: 21,745
Posted By bastil
Interesting combination. Why are you doing it...

Interesting combination. Why are you doing it this way?
Forum: OpenFOAM Running, Solving & CFD February 16, 2009, 15:34
Replies: 85
Views: 21,745
Posted By bastil
In Genral different solvers gi

In Genral different solvers give different results. However, 50% difference on drag seems massively to big for me. However I currently have no real explanation for it. It might be possible that the...
Forum: OpenFOAM Running, Solving & CFD February 12, 2009, 16:54
Replies: 85
Views: 21,745
Posted By bastil
Thanks Maddalena, I will do

Thanks Maddalena,

I will do so. Is it possible to get you second case, please?

Thanks BastiL
Forum: OpenFOAM Running, Solving & CFD February 11, 2009, 17:08
Replies: 85
Views: 21,745
Posted By bastil
Well... sounds good. I expe

Well...

sounds good. I expected this bc to be difficult in the first moment but after I saw the Fluent residuals I was sure OF should run on it - and I still think it should work.
I would be...
Forum: OpenFOAM Running, Solving & CFD February 11, 2009, 07:52
Replies: 85
Views: 21,745
Posted By bastil
I run two numerical variants s

I run two numerical variants so far. Both are are running 400 Iterations w/o problems but give totally different results. I have to go deeper into it.

The case you sent me is 8°AoA, right?
...
Forum: OpenFOAM Running, Solving & CFD February 10, 2009, 14:56
Replies: 85
Views: 21,745
Posted By bastil
Time = 9 DILUPBiCG: Solvin

Time = 9

DILUPBiCG: Solving for Ux, Initial residual = 0.0047906, Final residual = 3.78068e-07, No Iterations 5
DILUPBiCG: Solving for Uy, Initial residual = 0.00373367, Final residual =...
Forum: OpenFOAM Running, Solving & CFD February 10, 2009, 03:29
Replies: 85
Views: 21,745
Posted By bastil
Some update: - I understand y

Some update:
- I understand your bc now. this looks fine
- GAMG looks better but I am still unhappy with pressure convergence
- How do you initialise Fluent?
- Do you run fmg-init in Fluent? ...
Forum: OpenFOAM Running, Solving & CFD February 9, 2009, 17:15
Replies: 85
Views: 21,745
Posted By bastil
Maddalena, I have taken a l

Maddalena,

I have taken a look at the case. Some questions and comments:

- Your mesh quality looks fine but it has no prism layers at all which is extremly poor for force prediction.. From...
Forum: OpenFOAM Running, Solving & CFD February 9, 2009, 05:45
Replies: 85
Views: 21,745
Posted By bastil
Yes, this E-Mail Adress is fin

Yes, this E-Mail Adress is fine.

About Wall-roughtness: Did you also modify this in your FLUENT runs?

Regards
Forum: OpenFOAM Running, Solving & CFD February 7, 2009, 06:03
Replies: 85
Views: 21,745
Posted By bastil
Well.... 1.) Maybe OF has o

Well....

1.) Maybe OF has other mesh requirements than Fluent but looking at your checkmesh results I think it should work. Is it possible to post your complete case for others to test?

2.)...
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