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Dear Pawel,<br>
<br>
For the B-conform formulation, here is the correct way to define the
constraints (both constraints were not correctly defined in your
'B-conform.pro' file):<br>
<br>
Constraint {<br>
{ Name a; Type Assign;<br>
Case {{ Region Dirichlet_a1 ; Value 0.; } }<br>
}<br>
{ Name a_Start; Type Assign;<br>
Case {{ Region Domain_Mag; SubRegion Dirichlet_a1 ; Value 0.; } }<br>
}<br>
}<br>
<br>
The first constraint defines the homogeneous Dirichlet boundary
condition only on surface region Dirichlet_a1.<br>
<br>
The second constraint (for the gauge condition on the vector potential)
must use as the 'SubRegion', the surface on which the vector potential
is fixed, i.e. Dirichlet_a1.<br>
<br>
You can use the PostOperation below for drawing the b distribution on a
section, which is often usefull in 3D:<br>
<br>
e = 1e-8;<br>
<br>
PostOperation {<br>
{ Name Section_b; NameOfPostProcessing MagSta_a_3D;<br>
Operation {<br>
Print[ b, OnSection {{0,0,e}{1,0,e}{0,1,e}}, File
"CoreSta_bsec.pos" ];<br>
}<br>
}<br>
}<br>
<br>
Kind regards,<br>
<br>
Patrick<br>
<br>
<br>
<br>
<br>
<br>
Pawel Kowol wrote:<br>
<blockquote type="cite" cite="mid001001c539e0$1b37dab0$2d299e9d@Pawel">
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<p class="MsoNormal" style="margin: 0cm 0cm 0pt;"><span lang="EN-US"
style=""><font face="Arial"><font size="2">Dear authors of GetDP<o:p></o:p></font></font></span></p>
<p class="MsoNormal" style="margin: 0cm 0cm 0pt;"><span lang="EN-US"
style=""><o:p><font face="Arial" size="2"> </font></o:p></span></p>
<p class="MsoNormal" style="margin: 0cm 0cm 0pt;"><span lang="EN-US"
style=""><font face="Arial"><font size="2">My name is Pawel Kowol and
I am PhD student at Silesian University of Technology (Poland). One of
parts of my PhD thesis is analysis of coupled magnetic and hydrodynamic
fields in a brake with a magnetorheological fluid. <o:p></o:p></font></font></span></p>
<p class="MsoNormal" style="margin: 0cm 0cm 0pt;"><span lang="EN-US"
style=""><font face="Arial"><font size="2">Do you think it is possible
to do it in GetDP?<o:p></o:p></font></font></span></p>
<p class="MsoNormal" style="margin: 0cm 0cm 0pt;"><span lang="EN-US"
style=""><font face="Arial"><font size="2">I would like to use your
software to solve this problem. I have tried to create and solve simple
examples of magnetic field problem. I have had no problem with 2D
examples but in 3D examples I have encountered many problems. The
results of calculations of extruded 2D problem (b-conforming) are very
strange, differ between themselves considerably. I tried to solve the
same 3D problem with h-conforming formulation, and “Iterative solver
has iterated too many times”. <o:p></o:p></font></font></span></p>
<p class="MsoNormal" style="margin: 0cm 0cm 0pt;"><span lang="EN-US"
style=""><font face="Arial"><font size="2">Could you please help me?<o:p></o:p></font></font></span></p>
<p class="MsoNormal" style="margin: 0cm 0cm 0pt;"><span lang="EN-US"
style=""><font face="Arial"><font size="2">Thank you in advance.<o:p></o:p></font></font></span></p>
<p class="MsoNormal" style="margin: 0cm 0cm 0pt;"><span lang="EN-US"
style=""><o:p><font face="Arial" size="2"> </font></o:p></span></p>
<p class="MsoNormal" style="margin: 0cm 0cm 0pt;"><span lang="EN-US"
style=""><font face="Arial"><font size="2">I attached my files with
this e-mail<o:p></o:p></font></font></span></p>
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<br>
<pre class="moz-signature" cols="72">--
Patrick Dular, Dr. Ir., Research associate, F.N.R.S.
Department of Electrical Engineering and Computer Science
Unit of Applied Electricity
University of Liege - Montefiore Institute - B28 - Parking P32
B-4000 Liege - Belgium - Tel. +32-4 3663710 - Fax +32-4 3662910
E-mail: <a class="moz-txt-link-abbreviated" href="mailto:Patrick.Dular@ulg.ac.be">Patrick.Dular@ulg.ac.be</a></pre>
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