[Madeinspace]

Kindly give me an insight on how to set time dependent setFields utility?


Say, I want to keep generating water in the circular computational domain (say every 5 sec) when simulation time is for 60 Sec. (as shown in figure) of dambreak. How do we change the conservation of mass equation when mass is being constantly added?


Thanks!

[anon_q]

you have to introduce source terms in your computational domain via fvOptions framework.
setFields is a utility to initialize your fields.

[Madeinspace]

Thank you for your prompt reply Evren.



Based on twoPhaseEulerFoam/laminar/injection, I modified fvOption file and kept it inside interfoam/damBreakTutorial/constant folder.


Simulation runs fine but I don't see any injection of the mass term (Water) in the specified point. What could I be doing wrong? The fvOptions code is as:


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

injector1
{
timeStart 0.1;
duration 0.5;
selectionMode points;
points
(
(0.1 0.35 0.0)
);
}

options
{
massSource1
{
type scalarSemiImplicitSource;

scalarSemiImplicitSourceCoeffs
{
$injector1;

volumeMode absolute;
injectionRateSuSp
{
mixture:rho.water (1 0); // kg/s //

}
}
}
}