CFD Online Discussion Forums

CFD Online Discussion Forums (https://www.cfd-online.com/Forums/)
-   OpenFOAM (https://www.cfd-online.com/Forums/openfoam/)
-   -   Using yPlusRAS with interFoam (https://www.cfd-online.com/Forums/openfoam/98878-using-yplusras-interfoam.html)

JohnTornblom March 21, 2012 04:21
Using yPlusRAS with interFoam
 
Hi!

I am working on my master thesis and am fairly new to OpenFOAM. I got a problem concerning the calculation of yPLUS (or y*?) using yPlusRAS. As a part of the post processing I am trying to run yPlusRas via the terminal. However I get an error-message saying:

"-> FOAM FATAL IO ERROR:
keyword transportModel is undefined in dictionary /
"home/linux01/OpenFOAM/linux01-.1.0/run/2D/No_moonpool_forced_flow_2D/constant/transportProperties"

From function dictionary::lookupEntry(const word&, bool, bool) const
in file db/dictionary/dictionary.C at line 400."


transportProperties looks like this:


twoPhase
{
transportModel twoPhase;
phase1 phase1;
phase2 phase2;
}

phase1
{
transportModel Newtonian;
nu nu [ 0 2 -1 0 0 0 0 ] 1e-06;
rho rho [ 1 -3 0 0 0 0 0 ] 1000;
}


phase2
{
transportModel Newtonian;
nu nu [ 0 2 -1 0 0 0 0 ] 1.48e-05;
rho rho [ 1 -3 0 0 0 0 0 ] 1;
}

sigma sigma [ 1 0 -2 0 0 0 0 ] 0;




Does anyone has a suggestion on how to solve this problem?


Thanks in advance

BR
John

JohnTornblom March 30, 2012 07:58
The answer to this problem was to add a transportmodel above. then yPlusRas worked.

/*--------------------------------*- C++ -*----------------------------------*\
| ========= | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
| \\ / O peration | Version: 2.1.0 |
| \\ / A nd | Web: www.OpenFOAM.org |
| \\/ M anipulation | |
\*---------------------------------------------------------------------------*/
FoamFile
{
version 2.0;
format ascii;
class dictionary;
location "constant";
object transportProperties;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //


transportModel Newtonian;
nu nu [ 0 2 -1 0 0 0 0 ] 1e-06;
rho rho [ 1 -3 0 0 0 0 0 ] 1000;

phase1
{
transportModel Newtonian;
nu nu [ 0 2 -1 0 0 0 0 ] 1e-06;
rho rho [ 1 -3 0 0 0 0 0 ] 1000;
}

phase2
{
transportModel Newtonian;
nu nu [ 0 2 -1 0 0 0 0 ] 1.48e-05;
rho rho [ 1 -3 0 0 0 0 0 ] 1;
}

sigma sigma [ 1 0 -2 0 0 0 0 ] 0;


// ************************************************** *********************** //

walakaka March 16, 2018 07:05
Why the transportModel above uses water properties?
 
Quote:
Originally Posted by JohnTornblom (Post 352316)
The answer to this problem was to add a transportmodel above. then yPlusRas worked.

/*--------------------------------*- C++ -*----------------------------------*\
| ========= | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
| \\ / O peration | Version: 2.1.0 |
| \\ / A nd | Web: www.OpenFOAM.org |
| \\/ M anipulation | |
\*---------------------------------------------------------------------------*/
FoamFile
{
version 2.0;
format ascii;
class dictionary;
location "constant";
object transportProperties;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //


transportModel Newtonian;
nu nu [ 0 2 -1 0 0 0 0 ] 1e-06;
rho rho [ 1 -3 0 0 0 0 0 ] 1000;
Hi there,

Trying to revive this post from ages ago! Why do you set the density and viscosity as the water for the transport model above? Or does it not matter what you set it as?

My question will be assuming that the phases are water and air.

The concept should be the same if the phases are oil and water too? Please correct me if I'm wrong.

Kind regards
Shafik


All times are GMT -4. The time now is 01:36.