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<DIV><FONT face=Arial size=2><SPAN
class=317213109-23102006>Hello!</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN class=317213109-23102006>We are facing a
probably tricky problem here, and would like to know if there is a way to solve
it with GetDP:</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN class=317213109-23102006>One has two
brick-shaped electrodes which conduct quite well and who have respectively
one face set to a defined potential (e.g. 100 and 0 V) as boundary
condition.</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN class=317213109-23102006>Between the two
electrodes, there is hot (and therefore conducting) gas with a given
conductivity as a function of the local temperature field.</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN class=317213109-23102006>However, at the
boundary between gas and electrodes, there are a very thin region, in which
due to various effects a voltage drop occurs of a couple of volt. This region is
so thin that it is impossible to mesh it.</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN
class=317213109-23102006></SPAN></FONT> </DIV>
<DIV><FONT face=Arial size=2><SPAN class=317213109-23102006>Hence, we want to
simulate it by a very simple model, defining that at the physical
faces between gas and metal there should be a specific voltage
drop.</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN
class=317213109-23102006></SPAN></FONT> </DIV>
<DIV><FONT face=Arial size=2><SPAN class=317213109-23102006>Is there a way in
GetDP by which one could define a finite resistance of a 2D layer in a 3D
geometry?</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN class=317213109-23102006>Or is the only way
to accomplish this by creating an extremely thin additional region in which the
conductivity is defined prop. 1/j ?</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN
class=317213109-23102006></SPAN></FONT> </DIV>
<DIV><FONT face=Arial size=2><SPAN class=317213109-23102006>As a second point,
it would really help us a lot to have an example of a pro file, where from a
source _current_ distribution a magnetic field is calculated via the h-phi
formulation. We have been looking at the examples in the manual and the wiki,
but still don't understand how to calculate the source magnetic field from an
arbitrary current distribution within the formulation (e.g. InvRot we could
only get to work in the postprocessing). So, it would be very very kind if
somebody could share such a file. </SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN
class=317213109-23102006></SPAN></FONT> </DIV>
<DIV><FONT face=Arial size=2><SPAN class=317213109-23102006>Thank you for your
help,</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN class=317213109-23102006>and nice
greetings,</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN
class=317213109-23102006>Bernhard</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN
class=317213109-23102006></SPAN></FONT> </DIV>
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