Forum: OpenFOAM Running, Solving & CFD
June 25, 2010, 07:11
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Replies: 79
Views: 46,960
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Forum: OpenFOAM Running, Solving & CFD
January 22, 2009, 17:43
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Replies: 79
Views: 46,960
Then, why is Jasak stating thi
Then, why is Jasak stating this in his slide
http://powerlab.fsb.hr/ped/kturbo/OpenFOAM/slides/UniDarmstadt_12Jan2005.pdf
on page 4?
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Forum: OpenFOAM Running, Solving & CFD
January 22, 2009, 16:19
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Replies: 79
Views: 46,960
Well, the answers are getting
Well, the answers are getting thinner.
Lets try an easier one:
Using VOF means using blended density and viscosity in the Navier-Stokes-Equations:
rho = gamma*rho1+(1-gamma)*rho2
Is...
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Forum: OpenFOAM Running, Solving & CFD
January 21, 2009, 14:31
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Replies: 79
Views: 46,960
Hello again.
Thinking about
Hello again.
Thinking about the interface compression with phir I wondered about something. If the artificial velocity is directed into the direction of the interface normal, would this lead to...
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Forum: OpenFOAM Running, Solving & CFD
January 14, 2009, 14:46
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Replies: 79
Views: 46,960
Ok, Michael, Thank you.
It
Ok, Michael, Thank you.
It dawns me slowly - Ubbink (3.47) makes it some sense to me.
Since all the gradients in in natfv are explicitly interpolated the fvc::div(nHatf_) is just a tensor...
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Forum: OpenFOAM Running, Solving & CFD
January 14, 2009, 14:43
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Replies: 79
Views: 46,960
Ok, Michael, Thank you.
It
Ok, Michael, Thank you.
It dawns me slowly - Ubbink (3.47) makes it some sense to me.
Since all the gradients in in natfv are explicitly interpolated the fvc::div(nHatf_) is just a tensor...
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Forum: OpenFOAM Running, Solving & CFD
January 14, 2009, 14:41
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Replies: 79
Views: 46,960
Ok, Michael, Thank you.
It
Ok, Michael, Thank you.
It dawns me slowly - Ubbink (3.47) makes it some sense to me.
Since all the gradients in in natfv are explicitly interpolated the fvc::div(nHatf_) is just a tensor...
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Forum: OpenFOAM Running, Solving & CFD
January 13, 2009, 14:11
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Replies: 79
Views: 46,960
Thank you Michael.
Ok, sigm
Thank you Michael.
Ok, sigmaK() returns a volScalarField following interfaceProperties.H:
tmp<volscalarfield> sigmaK() const
{
return sigma_*K_;
}
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Forum: OpenFOAM Running, Solving & CFD
January 12, 2009, 10:45
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Replies: 79
Views: 46,960
Thank you Jim.
Then, how is
Thank you Jim.
Then, how is this body force discretisized?
As far as I got it, sigmaK() is explicitly calculated (fvc) at the cell faces.
Does it need further treatment?
Greetings. S.
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Forum: OpenFOAM Running, Solving & CFD
January 6, 2009, 03:56
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Replies: 79
Views: 46,960
Let me put my question in anot
Let me put my question in another way:
How is the interface.sigmaK() discretisized?
Is this a source term? Then I suppose it is calculated explicitly, since it is called within...
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Forum: OpenFOAM Running, Solving & CFD
January 4, 2009, 07:56
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Replies: 79
Views: 46,960
Hello.
Happy New Year to al
Hello.
Happy New Year to all of you!
I have some further questions regarding the VOF methode in interFoam.
Concerning the gamma-equation (gammaEqn.H):
phir is limited to max(phic)! ...
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Forum: OpenFOAM Running, Solving & CFD
December 24, 2008, 05:22
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Replies: 79
Views: 46,960
If this is an outlet than mayb
If this is an outlet than maybe the water is simply "leaking" out of it.
Maybe you can try fixedValue 0 for U at the out- and inlet?
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Forum: OpenFOAM Running, Solving & CFD
December 17, 2008, 09:38
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Replies: 79
Views: 46,960
Dear Edin.
Thanks for your
Dear Edin.
Thanks for your answere.
So, the equation will take this form?
http://www.cfd-online.com/OpenFOAM_Discus/messages/1/10372.png
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Forum: OpenFOAM Running, Solving & CFD
December 16, 2008, 13:57
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Replies: 79
Views: 46,960
Dear Edin.
Thanks for your
Dear Edin.
Thanks for your response.
I have read your answer carefully and looked the code up.
But I still have some questions related to the code.
Is this the correct analytical...
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Forum: OpenFOAM Running, Solving & CFD
December 16, 2008, 11:54
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Replies: 79
Views: 46,960
Thanks so far for your respons
Thanks so far for your responses.
I will try to get them step by step (and respond if there are any questions).
First of all:
Is there a reference for MULES in some kind of citable form?
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Forum: OpenFOAM Running, Solving & CFD
December 15, 2008, 08:44
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Replies: 79
Views: 46,960
I'm currently having a look in
I'm currently having a look into the gammaEqn.H from OF 1.4.1
Well, some parts look like the equation (4.15) from Rusches PhD thesis.
But still I'm not sure about some issues:
- Where...
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