[StefanosTrat]

Hello Foamers,

I am trying to simulate the combustion of non-premixed methane/air mixtures in a gas turbine combustor.

I have already run successfully the coldflow(318K) but now all I want to do is to begin the combustion process. I know that I could just change the inlet fuel's temperature e.g. at 2000K for a moment until an inclination of temperature is observed and then turn it back at 318K.

This time I want to use the setFieldsDict as a spark plug BUT I want to give it a duration of activation for example 2-3 seconds.

Does anyone know how to implement a time duration at the code?
Any help would be highly appreciated!

I will paste here the setFieldsDict I have .

/*--------------------------------*- C++ -*----------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration | Website: https://openfoam.org
\\ / A nd | Version: 8
\\/ M anipulation |
\*---------------------------------------------------------------------------*/
FoamFile
{
version 2.0;
format ascii;
class dictionary;
location "system";
object setFieldsDict;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

defaultFieldValues
(
volScalarFieldValue T 318
);

regions
(
boxToCell
{
box (0.002 -0.01 0.005) (0.02 0.01 0.055);
fieldValues
(
volScalarFieldValue T 850
);
}
);


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