[Jem01]

Hello.

Im Trying to simulate a Forced-Driven Fluidflow using IcoFoam.
Im using the "CavityFlow" Tutorial as a base and simply want to add a Force in x direction.

I think its simple but im new to Openfoam and im not getting it right.

Any help appreciated!

[tiam]

As a quick pointer in the right direction: look at fvOptions. It allows you to add a source term, which can be your force.


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[Jem01]

So i added an fvOptions file in the system but its not working

\*---------------------------------------------------------------------------*/
FoamFile
{
version 2.0;
format ascii;
class dictionary;
location "system";
object fvOptions;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

momentumSource
{
type vectorExplicitSetValue;
active on; //
selectionMode all; //

vectorExplicitSetValueCoeffs
{
injectionRate
{
F ( 10 0 0 );
}
}
}

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

[tiam]

Originally Posted by Jem01

So i added an fvOptions file in the system but its not working

\*---------------------------------------------------------------------------*/
FoamFile
{
version 2.0;
format ascii;
class dictionary;
location "system";
object fvOptions;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

momentumSource
{
type vectorExplicitSetValue;
active on; //
selectionMode all; //

vectorExplicitSetValueCoeffs
{
injectionRate
{
F ( 10 0 0 );
}
}
}

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

I think this one
https://github.com/OpenFOAM/OpenFOAM...plicitSource.H
should suite your needs better. It allows to add a source term.

[Jem01]

Im sorry, i dont get ...

How exactly does the fvOptions have to look like?

Or is there another way to add a Force, i copied the icoFoam.C and renamed it, but i dont know what i have to change to add a force.

Pls i need help im already so far behind in time.

[HPE]

It is not possible to enable any fvOptions for icoFoam at the time of writing.