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<DIV dir=ltr align=left><SPAN class=796271111-03062008><FONT face=Arial
color=#0000ff size=2>Dear Bogdan</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=796271111-03062008><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=796271111-03062008><FONT face=Arial
color=#0000ff size=2>You need to add your periodic boundary condition in your
functionspace along with the other constraints. It should look like
this</FONT></SPAN></DIV><SPAN class=796271111-03062008>
<DIV dir=ltr align=left><BR><FONT face=Arial color=#0000ff size=2>FunctionSpace
{<BR> { Name Hcurl_a ; Type Form1P ;<BR> BasisFunction
{<BR> { Name se ; NameOfCoef ae ; Function BF_PerpendicularEdge
;<BR> Support Omega ; Entity NodesOf[ All ] ;
}<BR> }<BR> Constraint {<BR> { NameOfCoef
ae ; EntityType NodesOf ; NameOfConstraint a ; }<BR> {
NameOfCoef ae ; EntityType NodesOf ; NameOfConstraint per ;
}<BR> }<BR> }<BR>}</FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff
size=2></FONT> </DIV>
<DIV dir=ltr align=left><SPAN class=796271111-03062008><FONT face=Arial
color=#0000ff size=2>I have tried it, and it looked correct to
me.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff
size=2></FONT> </DIV>
<DIV dir=ltr align=left></SPAN><SPAN class=796271111-03062008><FONT face=Arial
color=#0000ff size=2>KR, Lars Rindorf</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=796271111-03062008><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV><BR>
<DIV class=OutlookMessageHeader lang=da dir=ltr align=left>
<HR tabIndex=-1>
<FONT face=Tahoma size=2><B>Fra:</B> getdp-bounces@geuz.org
[mailto:getdp-bounces@geuz.org] <B>På vegne af </B>Bogdan
Funieru<BR><B>Sendt:</B> 3. juni 2008 12:56<BR><B>Til:</B>
getdp@geuz.org<BR><B>Emne:</B> [Getdp] Periodic Boundary
Conditions<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV class=Section1>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Dear List,</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"></SPAN></FONT> </P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">I have a problem using periodic
boundary conditions. The simple example attached represents a linear permanent
magnet machine without stator slots. Two poles are simulated and the moving part
is translated so one of the poles is split on left and right of the model. The
solving works without incidents but the result is not a periodic field. (E.g.
the last postoperation shows the Az on a line in the middle of the air gap and
the left end has not the same value with the right end.). I’ have checked if the
mesh is the same left from right and noticed that the nodes have not exactly the
same position on the boundary. The file per1.msh corrects this problem but the
result is not better. Does somebody have an idea where my problem comes
from?</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"></SPAN></FONT> </P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Many thanks</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"></SPAN></FONT> </P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Dr.-Ing. Bogdan
Funieru</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Institut für elektrische
Energiewandlung/ </SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Institute for Electrical Energy
Conversion</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Technische Universität
Darmstadt</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Landgraf-Georg-Str.
4</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">64283 Darnstadt</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Tel.
0049-(0)6151-16-5694</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Fax.
0049-(0)6151-16-6033</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><A
href="http://www.ew.e-technik.tu-darmstadt.de">www.ew.e-technik.tu-darmstadt.de</A></SPAN></FONT></P>
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