[Getdp] Coupling Analysis (Thermo MagDyn)
ABE Hiroshi
habe36 at gmail.com
Tue Oct 17 11:04:07 CEST 2017
Dear All,
I am working on a coupling analysis of magnetodynamics and thermal dynamics. Referring to “indheat” sample, I build a model.
It uses A-V formulation regarding Magnetodynamics, and I would like to couple the electric current in the thermal formulation.
They are:
Formulation {
{ Name MagStaDyn_av_js0_3D ; Type FemEquation ;
Quantity {
{ Name a ; Type Local ; NameOfSpace HSpace ; }
{ Name v ; Type Local ; NameOfSpace USpace ; }
}
Equation {
Galerkin { [ nu[] * Dof{d a} , {d a} ] ;
In Domain ; Jacobian Vol ; Integration II ; }
Galerkin { DtDof[ sigma[] * Dof{a} , {a} ] ;
In DomainC ; Jacobian Vol ; Integration II ; }
Galerkin { [ sigma[] * Dof{d v} , {a} ] ;
In DomainC ; Jacobian Vol ; Integration II ; }
Galerkin { [ -js0[], {a} ] ;
In DomainS ; Jacobian Vol ; Integration II ; }
Galerkin{ DtDof[ sigma[] * Dof{a}, {d v} ] ;
In DomainC ; Jacobian Vol ; Integration II ; }
Galerkin{ [ sigma[] * Dof{d v} , {d v} ] ;
In DomainC ; Jacobian Vol ; Integration II ; }
}
}
{ Name Thermal; Type FemEquation;
Quantity {
{ Name t; Type Local; NameOfSpace TSpace; }
{ Name a; Type Local; NameOfSpace HSpace; }
{ Name v; Type Local; NameOfSpace USpace; }
}
Equation {
Galerkin { [ K[] * Dof{d t}, {d t} ];
In DomainC; Integration II; Jacobian Vol; }
Galerkin { DtDof [ rho[]*Cp[] * Dof{t}, {t} ];
In DomainC; Integration II; Jacobian Vol; }
Galerkin { [ -1./sigma[]*(
Re[-(Dt[{a}]+{d v})]*
Re[-(Dt[{a}]+{d v})]+
Im[-(Dt[{a}]+{d v})]*
Im[-(Dt[{a}]+{d v})]), {t} ];
In DomainC; Integration II; Jacobian Vol; }
Galerkin { [ Ht[]*Dof{t}, {t} ];
In Skin_ECore; Jacobian Sur ; Integration II ; }
Galerkin { [-Ht[]*Tamb[], {t} ];
In Skin_ECore; Jacobian Sur ; Integration II ; }
Galerkin { [ sigma_sb*Ep[]*(Dof{t})^4, {t} ];
In Skin_ECore; Jacobian Sur ; Integration II ; }
Galerkin { [ -sigma_sb*Ep[]*(Tamb[])^4, {t} ];
In Skin_ECore; Jacobian Sur ; Integration II ; }
}
}
}
The MagStaDyn_av_js0_3D formulation gives a resonable solution but Thermal gives weird results.
I know the “indheat” example uses T-O formulation for coupling analysis. Are there any reasons to take T-O formulation instead of A-V formulation?
Any ways for A-V formulation?
Thank you so much.
Best,
ABE Hiroshi
from Tokorozawa, JAPAN
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