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Search took 0.00 seconds. Search: Posts Made By: kovamaniac
Forum: OpenFOAM Running, Solving & CFD June 17, 2014, 04:08
Replies: 17
Views: 4,043
Posted By kovamaniac
Thumbs up Finally, I followed your advice and changed...

Finally,

I followed your advice and changed the gradient schemes. That behaved correctly.

However, the most important issue for the accuracy results was to understand that the wallShearStress...
Forum: OpenFOAM Running, Solving & CFD June 12, 2014, 03:35
Replies: 17
Views: 4,043
Posted By kovamaniac
I use the setup for the fvSolution file suggested...

I use the setup for the fvSolution file suggested for the simpleFoam at the link you gave; however this is for a laminar case -this is what it says, despite having k and epsilon defined.

If I use...
Forum: OpenFOAM Running, Solving & CFD June 10, 2014, 09:31
Replies: 17
Views: 4,043
Posted By kovamaniac
The same behavior and convergence in higher...

The same behavior and convergence in higher values.

In any case, I solved the issue with the inaccuracy.

FYI, the wallShearStress DOES NOT WORK FOR LOW-RE GRIDS.

Calculating u_tau with...
Forum: OpenFOAM Running, Solving & CFD June 8, 2014, 11:04
Replies: 17
Views: 4,043
Posted By kovamaniac
Also I am not sure about the accurace as the...

Also I am not sure about the accurace as the results differ significantly form NASA's. I do not so much care about the values but from the fact that my results do not follow well the law of the wall.
Forum: OpenFOAM Running, Solving & CFD June 8, 2014, 10:58
Replies: 17
Views: 4,043
Posted By kovamaniac
Exactly the same situation. My main problem...

Exactly the same situation.

My main problem seems to be the pressure convergence. In both the very fine mesh (~2100000 cells) and the coarse presents a very oscillatory behavior. In the fine mesh...
Forum: OpenFOAM Running, Solving & CFD June 4, 2014, 06:01
Replies: 17
Views: 4,043
Posted By kovamaniac
This reminds me the way I was doing it with...

This reminds me the way I was doing it with fluent where the top was also an inflow bc. Let me try this and I will let you know.
Forum: OpenFOAM Running, Solving & CFD June 4, 2014, 04:40
Replies: 17
Views: 4,043
Posted By kovamaniac
You are correct. Mass conservation. Thank you...

You are correct. Mass conservation. Thank you very much.
Forum: OpenFOAM Running, Solving & CFD June 4, 2014, 03:42
Replies: 17
Views: 4,043
Posted By kovamaniac
Hi Philipp. My settings are the following: ...

Hi Philipp.

My settings are the following:
Initial conditions for U

dimensions [0 1 -1 0 0 0 0];
internalField uniform ( 68.4 0. 0. );
　
boundaryField
{
Forum: OpenFOAM Running, Solving & CFD May 29, 2014, 00:59
Replies: 17
Views: 4,043
Posted By kovamaniac
Hi. As I am having trouble in making the SST...

Hi.

As I am having trouble in making the SST run, could you please post the rest of your files for the setup? My solution does not converge and I cannot understand why.
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