[Getdp] Dual Formulation in the wiki
Amit.Itagi at seagate.com
Amit.Itagi at seagate.com
Mon Jan 29 20:04:18 CET 2007
Hi,
I have a question regarding the dual formulation example (
http://www.geuz.org/getdp/wiki/DualFormulations ). I find that the first
order and the higher order elements satisfy different constraints (See
excerpt below). Could someone kindly explain the motivation for defining
separate constraints ?
The higher order elements are being used as a result of P1 adaptation. I
would think that since the same problem is being solved, the constraints
would remain the same.
Thanks
Rgds,
Amit
//----------------------------------------------------------------------------------------------------------------------------
FunctionSpace {
{ Name Hgrad_phi_MagSta; Type Form0;
BasisFunction {
{ Name sn1n ; NameOfCoef wn1n ; Function BF_Node ; Support Tot_Mag;
Entity NodesOf[All]; }
{ Name sn2e ; NameOfCoef wn2e ; Function BF_Node_2E ; Support Tot_Mag
; Entity EdgesOf[ All ] ; }
.
.
.
}
Constraint {
{ NameOfCoef wn1n; EntityType NodesOf ; NameOfConstraint Sta_phi; }
{ NameOfCoef wn2e ; EntityType EdgesOf ; NameOfConstraint
Sta_phi_Zero ; }
.
.
.
}
}
Constraint {
{ Name Sta_phi ;
Case {
{ Region left ; Value -100. ; }
{ Region right ; Value 100. ; }
}
}
{ Name Sta_phi_Zero ;
Case {
{ Region left ; Value 0. ; }
{ Region right ; Value 0. ; }
}
}
//---------------------------------------------------------------------------------