[samiam1000]

Dear all,

I have found this dictionary, setFieldDict, and I am finding it very useful.

I have this dictionary for my case:

/*--------------------------------*- 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;
    object      setFieldsDict;
}

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

defaultFieldValues
(
    volScalarFieldValue T 278
);

regions
(
    // Set patch values (using ==)
    zoneToCell
    {
        name air_infinite;

        fieldValues
        (
            volScalarFieldValue T 298
        );
    }
);

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

What I would like to know is if the temperature in the air_infinite zone will remain constant (T = 298) during the whole simulation.

Thanks a lot,

Samuele

[anon_a]

What I would like to know is if the temperature in the air_infinite zone will remain constant (T = 298) during the whole simulation.

Well, you will have to do the simulation to check that! :-p
In the general case no, that's just an initial condition.

[samiam1000]

Well, you will have to do the simulation to check that! :-p

That's what I did ..

I asked in order to avoid the simulation.. Anyway, do you know how to impse a certain value (let's say temperature) in a volume during the whole simulation??

[anon_a]

You can check some previous posts for that:

http://www.cfd-online.com/Forums/ope...-solution.html
http://www.cfd-online.com/Forums/ope...lculation.html
http://www.cfd-online.com/Forums/ope...ll-solver.html

I am afraid that it is not done easily with some tool, you will have to play with the code.

[samiam1000]

Thanks a lot.

Actually, I did it for buoyantSimpleFoam, but I am getting a strange errore with buoyantPimpleFoam.

I'm trying again and again! Hope to solve it!

Thanks again,

Samuele.

[Sud09463]

hello,
I am using following setFieldDict for my case:
/*--------------------------------*- C++ -*----------------------------------*\
| ========= | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
| \\ / O peration | Version: 2.1.x |
| \\ / A nd | Web: www.OpenFOAM.org |
| \\/ M anipulation | |
\*---------------------------------------------------------------------------*/
FoamFile
{
version 2.0;
format ascii;
class dictionary;
location "system";
object setFieldsDict;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

defaultFieldValues
(
volScalarFieldValue alpha1 0
);

regions
(
cylinderToCell
{
p1 (0 0 0);

p2 (0 0 70e-3);

radius 2.285-3;

fieldValues
(
volVectorFieldValue U (0 0 107)

volScalarFieldValue f 1;
);
}
);


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

I want to know that what is the meaning of this Dict file? fieldValues that i am assigning will be imposed to which face of the cylinder? whether at face having point P1 or face having point P2?

I am not able to understand this. Can anybody help me?

[floquation]

Please use [code]-tags to show code. Otherwise you lose alignment/indentation which makes it nasty to read...

It is volumetric:
All cells within the cylinder with axis (and therefore both its height and position are defined) and radius "radius", are selected. Then the specified values for U and f are applied as initial condition to those cells.