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Search took 0.00 seconds. Search: Posts Made By: syavash
Forum: OpenFOAM Running, Solving & CFD October 11, 2015, 19:03
Replies: 80
Views: 16,813
Posted By syavash
Well, I cannot assess since I don't have any...

Well, I cannot assess since I don't have any knowledge about your computational setup.
Anyway, you should be able to get a fairly turbulent initial field using perturbUGeneric.

However, as the...
Forum: OpenFOAM Running, Solving & CFD October 11, 2015, 14:17
Replies: 80
Views: 16,813
Posted By syavash
Use perturbUGeneric instead of perturbUChannel....

Use perturbUGeneric instead of perturbUChannel. It requires no dictionary (in contrast to perturbUChannel) and the only informations required are Ubar and Retau which should be present within...
Forum: OpenFOAM Running, Solving & CFD October 11, 2015, 13:33
Replies: 80
Views: 16,813
Posted By syavash
Hi Tiam, The best way to get an initialized...

Hi Tiam,

The best way to get an initialized turbulent flow is using perturbU utility. You can search the forum to find it. After making the flow turbulent, switch to the Lund BC and continue with...
Forum: OpenFOAM Running, Solving & CFD September 10, 2015, 10:46
Replies: 80
Views: 16,813
Posted By syavash
Thanks Chris, Whole this time I was...

Thanks Chris,

Whole this time I was struggling to apply Lund BC with no success, but now I can see that it was not a problem of boundary conditions or solution schemes.
As you suggested, I tried...
Forum: OpenFOAM Running, Solving & CFD September 8, 2015, 16:39
Replies: 80
Views: 16,813
Posted By syavash
Hi Christoph, I hope you had some time to...

Hi Christoph,

I hope you had some time to take a look at this :)
When I apply Lund BC to my own case, something odd happens.
Gradually, deltaRecycle decreases until it becomes lower than...
Forum: OpenFOAM Running, Solving & CFD August 27, 2015, 14:22
Replies: 80
Views: 16,813
Posted By syavash
I am really sorrey for bothering you, but as I...

I am really sorrey for bothering you, but as I changed the value of UMeanSpanTime to something greater than 0, the problem resolved initially and a reasonable thickness at recycling plane was...
Forum: OpenFOAM Running, Solving & CFD August 27, 2015, 14:04
Replies: 80
Views: 16,813
Posted By syavash
Dear Christoph, I could finally create a...

Dear Christoph,

I could finally create a grid file like that in Joachim test case, with a small gap between my domain.

I let my solution continues for one flow-through time and the flow is...
Forum: OpenFOAM Running, Solving & CFD August 24, 2015, 15:50
Replies: 80
Views: 16,813
Posted By syavash
Dear Christoph, Your comments were really...

Dear Christoph,

Your comments were really helpful. Thanks! :)
Yet, I should work on it to get into that.

Following our discussion regarding the intermediate patch to use for recycling, I have...
Forum: OpenFOAM Running, Solving & CFD August 24, 2015, 06:31
Replies: 80
Views: 16,813
Posted By syavash
Thanks Christoph, My channel simply is like...

Thanks Christoph,

My channel simply is like the configuration in pitzDaily tutorial, except that the upper wall is further away and the incoming flow is not fully developped but is completely...
Forum: OpenFOAM Running, Solving & CFD August 23, 2015, 08:01
Replies: 80
Views: 16,813
Posted By syavash
Thanks Christoph, You answered my questions,...

Thanks Christoph,

You answered my questions, more or less. Regarding your second statement, I do have a channel flow but not a fully developped one! So, I guess I cannot use mappedBC and...
Forum: OpenFOAM Running, Solving & CFD August 23, 2015, 06:33
Replies: 80
Views: 16,813
Posted By syavash
Dear Christoph, I have some questions...

Dear Christoph,

I have some questions regarding this BC.

I have a channel flow with a humb in middle of it, already with an initial solution (fully turbulent at inlet). I want to use...
Showing results 1 to 11 of 11

 
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