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Forum: OpenFOAM Running, Solving & CFD October 29, 2008, 08:03
Replies: 74
Views: 10,943
Posted By danielle
Hi, Yes yu're true. The e

Hi,

Yes yu're true. The explicit drag is very slow in convergence, when I use the original form (in p equation) I get a good result with experimental, but with the explicit form the volume...
Forum: OpenFOAM Running, Solving & CFD October 28, 2008, 19:47
Replies: 74
Views: 10,943
Posted By danielle
Hello every body, when I ret

Hello every body,
when I retransferred the explecit drag from the p equation to the U equation (the original form for the momentum equation) I get unrealistic result !
I added: (beta/rhoa*K*Ub)...
Forum: OpenFOAM Running, Solving & CFD October 27, 2008, 17:23
Replies: 74
Views: 10,943
Posted By danielle
thanks for your kindness :-)

thanks for your kindness :-)
I think that I have access to them
Forum: OpenFOAM Running, Solving & CFD October 27, 2008, 11:20
Replies: 74
Views: 10,943
Posted By danielle
Thanks Alberto, Yes I need s

Thanks Alberto,
Yes I need some references.
Forum: OpenFOAM Running, Solving & CFD October 27, 2008, 10:13
Replies: 74
Views: 10,943
Posted By danielle
Hello every body, First tha

Hello every body,
First thank you for your help.
My problem is not where I should put the diametres of phase a and b.
I have a reator which initaly has a half full with water, the other...
Forum: OpenFOAM Running, Solving & CFD October 24, 2008, 09:00
Replies: 74
Views: 10,943
Posted By danielle
Thanks Niklas, In my case I h

Thanks Niklas,
In my case I have water like a continuous phase, the air is the dispersed one. In this case we can also use the bubbleFoam Solver.
maybe we should gives a diametre for this...
Forum: OpenFOAM Running, Solving & CFD October 23, 2008, 20:48
Replies: 74
Views: 10,943
Posted By danielle
Hi, I'm back for asking help

Hi,
I'm back for asking help.
In order to calculate the drag coefficient we need the diameter db for the phase b.

how can I give a diameter for a continuous phase?
Thanks
Forum: OpenFOAM Running, Solving & CFD October 13, 2008, 20:46
Replies: 74
Views: 10,943
Posted By danielle
Thanks Alberto, I don't found

Thanks Alberto,
I don't found any think in this thesis about the additional term (-fvm::Sp(fvc::div(phiRb), Ub) !

For the first question, I will reread this thesis.

I will added the...
Forum: OpenFOAM Running, Solving & CFD October 13, 2008, 00:35
Replies: 74
Views: 10,943
Posted By danielle
Hello every body, I need to

Hello every body,
I need to understand twoPhaseEulerFoam solver, for this I count on your help !!

1. In the momentum Eq I don't found -grad(p) term (neither in UaEqn nor in UbEqn) ?
...
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