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Forum: OpenFOAM Running, Solving & CFD

December 20, 2011, 07:14

Replies: 37

Artificial high velocities at the interface using interFoam

Views: 15,847

Posted By pablodecastillo

Thanks to share Bernhard, i will try to test...

Thanks to share Bernhard, i will try to test ASAP.

Pablo

Forum: OpenFOAM Running, Solving & CFD

June 14, 2011, 06:45

Replies: 37

Artificial high velocities at the interface using interFoam

Views: 15,847

Posted By pablodecastillo

Hi Arne, I am not using exactly 0 for...

Hi Arne,

I am not using exactly 0 for velocities at the air, i think that is too agressive. I am relaxing only the air phase and i am getting nice results, i mean i am running mesh that before was...

Forum: OpenFOAM Running, Solving & CFD

June 13, 2011, 17:04

Replies: 37

Artificial high velocities at the interface using interFoam

Views: 15,847

Posted By pablodecastillo

You can try something like this: ...

You can try something like this:

forAll(U, celli)
{
if (alpha1[celli] < 0.01) {
U[celli] = 0.0;
}

}

Forum: OpenFOAM Running, Solving & CFD

June 9, 2011, 15:39

Replies: 37

Artificial high velocities at the interface using interFoam

Views: 15,847

Posted By pablodecastillo

Hi Arne, My version from interFoam is...

Hi Arne,

My version from interFoam is rotational and inviscid, and i modify with ;

fvVectorMatrix UEqn
(
fvm::ddt(rho, U)
+ alpha1*fvm::div(rhoPhi, U)

but...

Forum: OpenFOAM Running, Solving & CFD

June 7, 2011, 05:09

Replies: 37

Artificial high velocities at the interface using interFoam

Views: 15,847

Posted By pablodecastillo

Now it is very clear and easy. Thank you very...

Now it is very clear and easy. Thank you very much.

Pablo

Forum: OpenFOAM Running, Solving & CFD

June 6, 2011, 16:54

Replies: 37

Artificial high velocities at the interface using interFoam

Views: 15,847

Posted By pablodecastillo

Hello Arne, Set velocities 0 when...

Hello Arne,

Set velocities 0 when alpha1<0.05 is clear for me, it is like a BC in every timestep, but modify the convertive term, i can not see too clear to implement.

We have
...

Forum: OpenFOAM Running, Solving & CFD

June 6, 2011, 14:23

Replies: 37

Artificial high velocities at the interface using interFoam

Views: 15,847

Posted By pablodecastillo

Hello Arne, I am interested in ignore the...

Hello Arne,

I am interested in ignore the convective term on the air side, can you let me known how did you do?, is it improving your simulation? (i mean if you are avoiding very small time steps?...

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