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Forum: OpenFOAM Running, Solving & CFD September 7, 2011, 21:16
Replies: 35
Views: 17,550
Posted By alberto
I do not have a reference for this, but I think...

I do not have a reference for this, but I think you got it.
Forum: OpenFOAM Running, Solving & CFD September 6, 2011, 21:56
Replies: 35
Views: 17,550
Posted By alberto
From...

From ~/OpenFOAM/OpenFOAM-2.0.x/src/finiteVolume/finiteVolume/fvc/fvcReconstruct.C, you find that the reconstruct method is defined as:


template<class Type>
tmp
<
GeometricField
<
...
Forum: OpenFOAM Running, Solving & CFD July 14, 2011, 11:09
Replies: 35
Views: 17,550
Posted By alberto
Hi, @harry: each face flux will provide you...

Hi,

@harry: each face flux will provide you a contribution to the cell centered value, which can be re-constructed then based on the face values you defined. In other words you integrate the...
Forum: OpenFOAM Running, Solving & CFD July 12, 2011, 21:56
Replies: 35
Views: 17,550
Posted By alberto
Hi, this is not a requirement. If you look at...

Hi, this is not a requirement. If you look at many solvers (incompressible codes for example), the momentum equation is solved directly, treating the pressure term as source term:

solve
(
...
Forum: OpenFOAM Running, Solving & CFD July 12, 2011, 14:50
Replies: 35
Views: 17,550
Posted By alberto
The full PDE for the momentum equation is solved...

The full PDE for the momentum equation is solved once, with all the terms (well, bubbleFoam is an exception, since the momentum equation does not contain some of the terms, which are directly moved...
Forum: OpenFOAM Running, Solving & CFD July 12, 2011, 01:34
Replies: 35
Views: 17,550
Posted By alberto
I will try to give you the basic idea in the case...

I will try to give you the basic idea in the case of a generic body force term F, so that your momentum equation reads:

(1) ddt(U) + div(UU) = div(tau) - grad(p)/rho + F

This equation can be...
Forum: OpenFOAM Running, Solving & CFD July 11, 2011, 10:41
Replies: 35
Views: 17,550
Posted By alberto
Sorry, the link on the wiki (where I took it) to...

Sorry, the link on the wiki (where I took it) to the Rhie-Chow document is broken. Laurence gave you the correct one.
Forum: OpenFOAM Running, Solving & CFD July 11, 2011, 03:09
Replies: 35
Views: 17,550
Posted By alberto
Yes, bubbleFoam and twoPhaseEulerFoam implement...

Yes, bubbleFoam and twoPhaseEulerFoam implement an improved interpolation approach to treat gravity and drag. In OpenFOAM such a practise is implemented in some of the solvers (buoyant, multiphase,...
Forum: OpenFOAM Running, Solving & CFD July 11, 2011, 02:36
Replies: 35
Views: 17,550
Posted By alberto
What solver are you referring to?

What solver are you referring to?
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