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Search took 0.00 seconds. Search: Posts Made By: lovecraft22
Forum: OpenFOAM August 5, 2011, 04:24
Replies: 50
Views: 5,879
Posted By lovecraft22
What should I check about the ddtSchemes?

What should I check about the ddtSchemes?
Forum: OpenFOAM August 4, 2011, 06:58
Replies: 50
Views: 5,879
Posted By lovecraft22
The same case won't converge with icoFoam… Why?

The same case won't converge with icoFoam… Why?
Forum: OpenFOAM August 3, 2011, 11:23
Replies: 50
Views: 5,879
Posted By lovecraft22
Thank you!

Thank you!
Forum: OpenFOAM August 3, 2011, 09:13
Replies: 50
Views: 5,879
Posted By lovecraft22
Nope, no reason, just copied them over from the...

Nope, no reason, just copied them over from the motorbike tutorial. Anyway setting the boundary as srakshit I now got some reasonable results!

Thank you to both of you!
Forum: OpenFOAM August 3, 2011, 09:08
Replies: 50
Views: 5,879
Posted By lovecraft22
I only tried simpleFoam with turbulence models.

I only tried simpleFoam with turbulence models.
Forum: OpenFOAM August 3, 2011, 08:46
Replies: 50
Views: 5,879
Posted By lovecraft22
OpenFoam 2.0.0

OpenFoam 2.0.0
Forum: OpenFOAM August 3, 2011, 08:43
Replies: 50
Views: 5,879
Posted By lovecraft22
I was just kidding about the fact that though I'm...

I was just kidding about the fact that though I'm running a low velocity simulation yet I get an hypersonic velocity at the outlet…
Forum: OpenFOAM August 3, 2011, 08:28
Replies: 50
Views: 5,879
Posted By lovecraft22
You have to define one pressure value at least. ...

You have to define one pressure value at least.

I set the pressure value to 0 at the inlet and the rest as you suggested.
Now it's running, let's see what comes out.
Forum: OpenFOAM August 3, 2011, 08:08
Replies: 50
Views: 5,879
Posted By lovecraft22
Could you upload your boundary conditions? ...

Could you upload your boundary conditions?

Thank you!
Forum: OpenFOAM August 3, 2011, 07:59
Replies: 50
Views: 5,879
Posted By lovecraft22
That's my inlet condition: he velocity is not 0...

That's my inlet condition: he velocity is not 0 but 30m/s.

About the outlet, the velocity is around 3000 m/s!!
It's an hypersonic cylinder!
Forum: OpenFOAM August 3, 2011, 07:48
Replies: 50
Views: 5,879
Posted By lovecraft22
1. I had to change the inlet condition also...

1. I had to change the inlet condition also because otherwise I got an error which basically said that the solver couldn't find any reference cell for pressure.

2. Pressure is relative, so (I...
Forum: OpenFOAM August 3, 2011, 06:53
Replies: 50
Views: 5,879
Posted By lovecraft22
Thank you Sukanta. I changed the pressure...

Thank you Sukanta.

I changed the pressure boundary condition as the following:

boundaryField
{
inlet
{
type fixedValue;
value uniform 0;
Forum: OpenFOAM August 2, 2011, 13:57
Replies: 50
Views: 5,879
Posted By lovecraft22
Hi again; I changed the boundary conditions but...

Hi again;
I changed the boundary conditions but I'm still getting some really strange results, se the picture attached: the free stream should be coming from left to right at 30 m/s.

I've also...
Forum: OpenFOAM July 27, 2011, 07:31
Replies: 50
Views: 5,879
Posted By lovecraft22
Can't I set the pressure at the outlet to be the...

Can't I set the pressure at the outlet to be the same as the freestream static pressure?
Forum: OpenFOAM July 27, 2011, 03:18
Replies: 50
Views: 5,879
Posted By lovecraft22
Ok, I'll set them as you suggested and we'll what...

Ok, I'll set them as you suggested and we'll what comes out...

Just another quick question: which boundary conditions would you set if you were running a car in a free stream?

Thank you once...
Forum: OpenFOAM July 27, 2011, 02:21
Replies: 50
Views: 5,879
Posted By lovecraft22
Ok, this way thought I'll set the velocity at the...

Ok, this way thought I'll set the velocity at the outlet at 30 m/s but that's not the physical case… Am I correct?
Forum: OpenFOAM July 26, 2011, 16:29
Replies: 50
Views: 5,879
Posted By lovecraft22
Thank you Sukanata… I haven't quite well...

Thank you Sukanata…
I haven't quite well understood what you mean with watch you suggested about the boundary conditions…

I'd really appreciate if you could give me some more detailed...
Forum: OpenFOAM July 26, 2011, 13:50
Replies: 50
Views: 5,879
Posted By lovecraft22
Actually, if you look at my blockMeshDict you'll...

Actually, if you look at my blockMeshDict you'll see that frontAndBack are the planes parallel to the xz plane (red in the following picture) while upperWall and lowerWall are the planes parallel to...
Forum: OpenFOAM July 26, 2011, 13:37
Replies: 50
Views: 5,879
Posted By lovecraft22
I'm trying to simulate a flow in the x-y plane,...

I'm trying to simulate a flow in the x-y plane, so the planes parallel to this have to be empty…
Forum: OpenFOAM July 26, 2011, 02:18
Replies: 50
Views: 5,879
Posted By lovecraft22
Thanks to both of you. I haven't performed a...

Thanks to both of you.

I haven't performed a check mesh, I'll surely do that.
About my boundary conditions, how would you advise to set them as?

Thank you!
Forum: OpenFOAM July 25, 2011, 14:10
Replies: 50
Views: 5,879
Posted By lovecraft22
Can anybody please check my boundary conditions?

Hi all;
I'm getting some strange results for a 2D circular cylinder run at 30 m/s, see this picture please:

http://dl.dropbox.com/u/2459663/1.png

Now, can anybody of you guys please check my...
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