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Forum: OpenFOAM Running, Solving & CFD April 3, 2009, 21:47
Replies: 40
Views: 13,795
Posted By harly
... couple of hours later ...

Hi everyone,

so here are some interesting results I'd like to discuss with you:

I took the case Frank Bos offers on his homepage and ran the case with a force configuration in the...
Forum: OpenFOAM Running, Solving & CFD April 2, 2009, 13:58
Replies: 40
Views: 13,795
Posted By harly
So, 3D simulation is on its way - once it is...

So,

3D simulation is on its way - once it is finished I will post pictures (pressure, velocity plots) and then we can discuss the matter further.

I use the "standard" formulation of the...
Forum: OpenFOAM Running, Solving & CFD April 1, 2009, 17:29
Replies: 40
Views: 13,795
Posted By harly
@albcem: I am very sorry somehow I overread...

@albcem:

I am very sorry somehow I overread your first post. Can you explain to me how you would preturbate the flow ? And to your question of the turbulence model switched off - generated a...
Forum: OpenFOAM Running, Solving & CFD April 1, 2009, 17:05
Replies: 40
Views: 13,795
Posted By harly
Thx for checking my case, so you think the...

Thx for checking my case, so you think the problem is in the mesh? - I will create a finer mesh and will report back before I let it run. Do you have any suggestions regarding the schemes and solver...
Forum: OpenFOAM Running, Solving & CFD March 31, 2009, 13:12
Replies: 40
Views: 13,795
Posted By harly
@santos I am sorry about the link, but it...

@santos

I am sorry about the link, but it works for me if you could send me an email to openfoam.messageboard at gmail.com - I will reply to you and attach my case.


@all

Thanks for the...
Forum: OpenFOAM Running, Solving & CFD March 29, 2009, 03:17
Replies: 40
Views: 13,795
Posted By harly
Hi, so far I only tried the linear with the...

Hi,

so far I only tried the linear with the CrankNicholson(not backward) - but - isn't that second order too ?

Do you think that would help with the shedding ?

I can give it a try as soon as...
Forum: OpenFOAM Running, Solving & CFD March 28, 2009, 14:12
Replies: 40
Views: 13,795
Posted By harly
Used fvSchemes and fvSolution files

Hi - here are the config files I am using:

FoamFile
{
class dictionary;
object fvSchemes;
}

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *...
Forum: OpenFOAM Running, Solving & CFD March 28, 2009, 14:04
Replies: 40
Views: 13,795
Posted By harly
link to my case

Hi,

here is the link to my case with the variables set to Re = 300 (but feel free to doublecheck):

http://harly.de.vu/www/spherecase.zip

-harly
Forum: OpenFOAM Running, Solving & CFD March 27, 2009, 18:14
Replies: 40
Views: 13,795
Posted By harly
Hey, Yeah I would have thought so too, but...

Hey,

Yeah I would have thought so too, but I just don't get it to work - if someone has the time and the motivation to give it a try I would be more than happy to send you my case. Meanwhile I...
Forum: OpenFOAM Running, Solving & CFD March 27, 2009, 17:46
Replies: 40
Views: 13,795
Posted By harly
Hey, thanx for the input - maybe I will give...

Hey,

thanx for the input - maybe I will give your method a shot. Right now I try to kickstart it with initializing the Field lets say with 0.305 for +y and 0.295 for -y while having an inlet speed...
Forum: OpenFOAM Running, Solving & CFD March 27, 2009, 16:14
Replies: 40
Views: 13,795
Posted By harly
my reference

Hi,

so from what I am understanding - it seems there are in fact (at least) 3 different "areas".

A symmetric in the region up to Re 200

An asymmetric in the region 200 < Re < 250 in which...
Forum: OpenFOAM Running, Solving & CFD March 27, 2009, 15:25
Replies: 40
Views: 13,795
Posted By harly
What is the best "way" to get vortex shedding ?

Hi,

I am super stuck with my problem for a while now and I am running out of ideas.

Here is what I am doing:

I have 3D cases: sphere (D=1m and 2m) in a rectangular domain.

I am able to...
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