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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt'>Dear
Christoph, </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
11.0pt;layout-grid-mode:line'>I have sent a GetDP Wiki </span><span
style='layout-grid-mode:line'><a
href="http://www.geuz.org/getdp/wiki/ParallelZylinders2D"><span lang=EN-GB>http://www.geuz.org/getdp/wiki/ParallelZylinders2D</span></a></span></font><span
lang=EN-GB style='layout-grid-mode:line'> one can play with. Different geometry
(use symmetry or not) and different treatment of the far boundary condition (zero
dirichlet bdy. without or with spherical or rectangular shell transformation) can
be chosen in a simple way by means of the “</span><span lang=EN>TwoZylPar.pro</span><span
lang=EN style='layout-grid-mode:line'> </span><span lang=EN-GB
style='layout-grid-mode:line'>“ file. </span></p>
<p class=MsoNormal><span lang=EN-GB style='layout-grid-mode:line'> </span></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
11.0pt;layout-grid-mode:line'>The attached picture shows in the 4 quadrants the
results for the 2D solution with a zylindrical (top) or rectangular (bottom)
calc. domain, left hand side without shell region, on the right with shell
transformation. The thin potential-lines are from the exact solution calculated
on the same grid. </span></font></p>
<p class=MsoNormal><span lang=EN-GB style='layout-grid-mode:line'> </span></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
11.0pt;layout-grid-mode:line'>For the rect. shell transformation the center
point is set in the origin of the coordinate system, so two parameters, “power”
and “1/inf” remain to fit the solution. But I was not able to get a
nice solution as the one shown in the quadrant with the spherical
transformation. </span></font></p>
<p class=MsoNormal><span lang=EN-GB style='layout-grid-mode:line'> </span></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
11.0pt;layout-grid-mode:line'>Nice greetings from </span></font><span
lang=EN-GB style='layout-grid-mode:line'>Vienna</span></p>
<p class=MsoNormal><span lang=EN-GB style='layout-grid-mode:line'> </span></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
11.0pt;layout-grid-mode:line'>Karl</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:11.0pt;
layout-grid-mode:line'>___________________________</span></font></p>
<p class=MsoNormal style='line-height:15.0pt'><b><font size=1 color=maroon
face=Arial><span style='font-size:9.0pt;color:maroon;font-weight:bold'>arsenal
research</span></font></b></p>
<h1 style='margin:0cm;margin-bottom:.0001pt;line-height:15.0pt'><b><font
size=1 color=maroon face=Arial><span style='font-size:9.0pt;font-family:Arial;
color:maroon;font-weight:normal'>Geschäftsfeld Monitoring, Energie- und
Antriebstechnik/ <br>
Business Field Monitoring, Energy and Drives Technologies</span></font></b></h1>
<h1 style='margin:0cm;margin-bottom:.0001pt;line-height:15.0pt'><b><font
size=1 color=black face=Arial><span style='font-size:9.0pt;font-family:Arial;
color:black;font-weight:normal'>DI Karl Berger</span></font></b></h1>
<p class=MsoNormal style='line-height:15.0pt'><ST1:COUNTRY-REGION><ST1:PLACE><font
size=1 color=black face=Arial><span style='font-size:9.0pt;color:black'>Austria</ST1:PLACE></ST1:COUNTRY-REGION>,
1210 <ST1:CITY><ST1:PLACE>Vienna</ST1:PLACE></ST1:CITY>, Giefinggasse 2</span></font></p>
<p class=MsoNormal style='line-height:15.0pt'><font size=1 color=black
face=Arial><span lang=IT style='font-size:9.0pt;color:black'>ph: +43 (0)
50550-6276, f: +43 (0) 50550-6595</span></font></p>
<p class=MsoNormal style='line-height:15.0pt'><font size=1 color=black
face=Arial><span lang=IT style='font-size:9.0pt;color:black'>mobile: +43
(0)664/ 82 51 033 </span></font></p>
<p class=MsoNormal style='line-height:15.0pt'><font size=1 color=blue
face=Arial><span lang=DE-AT style='font-size:9.0pt;color:blue'><a
href="mailto:karl.berger@arsenal.ac.at"><span lang=EN-GB>karl.berger@arsenal.ac.at</span></a></span></font></p>
<p class=MsoNormal style='line-height:15.0pt'><font size=1 color=blue
face=Arial><span lang=DE-AT style='font-size:9.0pt;color:blue'><a
href="http://www.arsenal.ac.at/"><span lang=EN-GB>www.arsenal.ac.at</span></a></span></font></p>
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