[S.M.H]

hi
i changed buoyantBoussinesqSimpleFoam and add a heat source to it

fvScalarMatrix TEqn
    (
        fvm::div(phi, T)
      - fvm::Sp(fvc::div(phi), T)
      - fvm::laplacian(kappaEff, T)
      == Qt
     
    );

then i changed createFields.H to read Qt from 0 file

 Info<< "Reading field Qt\n" << endl;
    volScalarField Qt
    (
        IOobject
        (
            "Qt",
            runTime.timeName(),
            mesh,
            IOobject::MUST_READ,
            IOobject::AUTO_WRITE
        ),
        mesh
    );

now i want that Qt in 0 file change with groovyBC in each iteration

type            groovyBC;
     variables   "Tzone{cellZone'poool}=average(T);Uzone{cellZone'poool}=average(mag(U));q=(((0.0888+(0.0783*Uzone))*((3363)-((0.6)*((exp((20.386)-((5132)/(Tzone))))*(133.3224)))))/(31.2));";
        
        valueExpression  "297.15";
        gradientExpression "-q"; 
        fractionExpression "1";
        value       uniform 297.15 ;

i used this expression in boundry file T, too
but in the results groovyBC calculated expression in T but in Qt all values set to 0
result for T :

 {
        type            groovyBC;
        refValue        uniform 297.15;
        refGradient     uniform -3.57777;
        valueFraction   uniform 1;
        value           uniform 297.15;
        valueExpression "297.15";
        gradientExpression "-q";
        fractionExpression "1";
        evaluateDuringConstruction 0;
        variables       "Tzone{cellZone'poool}=average(T);Uzone{cellZone'poool}=average(mag(U));q=(((0.0888+(0.0783*Uzone))*((3363)-((0.6)*((exp((20.386)-((5132)/(Tzone))))*(133.3224)))))/(31.2));";
        timelines       (
);
        lookuptables    (
);
    }

result for Qt:

{
        type            groovyBC;
        refValue        uniform 0;
        refGradient     uniform 0;
        valueFraction   uniform 1;
        value           uniform 297.15;
        valueExpression "297.15";
        gradientExpression "-q";
        fractionExpression "1";
        evaluateDuringConstruction 0;
        variables       "Tzone{cellZone'poool}=average(T);Uzone{cellZone'poool}=average(mag(U));q=(((0.0888+(0.0783*Uzone))*((3363)-((0.6)*((exp((20.386)-((5132)/(Tzone))))*(133.3224)))))/(31.2));";
        timelines       (
);
        lookuptables    (
);
    }

then i noticed that if i add a semicolon or a braket in variables and make a syntax error code compile without any errors that means code doesn't read groovyBC variables and Expression

any suggestion?

thanks