[Getdp] TimeFunction - $Time

[Ruth Vazquez Sabariego]

Dear Jorge,

That’s normal as you are multiplying your time domain function by an amplitude of 0 (Value).
It should be 1 or the actual amplitude of the current (time independent):

Constraint{
 { Name Source_jDensZ; Type Assign;
Case {{ Region Vol_source; Value 1;
TimeFunction jsz[]; }}
 }
}

Best,
Ruth

—
Prof. Ruth V. Sabariego
KU Leuven
Dept. Electrical Engineering ESAT/Electa, EnergyVille
http://www.esat.kuleuven.be/electa
http://www.energyville.be

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On 5 Feb 2019, at 11:42, JORGE MIAJA HERNANDEZ <j.miaja at alumnos.upm.es<mailto:j.miaja at alumnos.upm.es>> wrote:

Dear all,

I want to have a ramp-up source current,

I have defined it like this in the function block:

Funcion{
   jsz[Coils]=-numberCoils*currentMax/SurfaceArea[]* $Time / timeMax;
}

and I set it as a constraint

Constraint{
 { Name Source_jDensZ; Type Assign;
Case {{ Region Vol_source; Value 0;
TimeFunction jsz[]; }}
 }
}

However, this constraint is not updated and the current seem to be 0 for all iterations of the time loop in the resolution block,

Resolution{
 { Name AA;
   System {
{ Name A; NameOfFormulation AMagneto; }
   }
   Operation {
InitSolution[A];
PostOperation[B];
TimeLoopTheta[timeO, timeMax, deltaTime, 1]{
// UpdateConstraint[ A, Coils, Assign ]; // this line does nothing :(
Generate[A]; Solve[A];
SaveSolution[A];
PostOperation[B];
}
   }
 }
}


I am guessing the problem is in the parameter $Time that I use to define the time function... but I do not know how the
proper way of using it is nor if there is a work around to do what I am trying do

Some help would be greatly appreciated,
Thanks a lot in advance,

All the best,
Jorge



--
JORGE MIAJA HERNANDEZ
Universidad Politecnica de Madrid


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