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Dear Jorge,
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<div class="">With the lines you have changed, I think you do not need to defined a region-wise function. </div>
<div class="">You could use:</div>
<div class="">boundaryA[] = X[]; // valid in the whole domain</div>
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<div class="">that will work at the constraint level. </div>
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<div class="">Best, </div>
<div class="">Ruth</div>
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—<br class="">
Prof. Ruth V. Sabariego<br class="">
KU Leuven <br class="">
Dept. Electrical Engineering ESAT/Electa, EnergyVille<br class="">
<a href="http://www.esat.kuleuven.be/electa" class="">http://www.esat.kuleuven.be/electa</a></div>
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<a href="http://www.energyville.be" class="">http://www.energyville.be</a></div>
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Free software: <a href="http://gmsh.info" class="">http://gmsh.info</a> | <a href="http://getdp.info" class="">http://getdp.info</a> | <a href="http://onelab.info" class="">http://onelab.info</a><br class="">
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<blockquote type="cite" class="">
<div class="">On 4 Feb 2019, at 11:56, JORGE MIAJA HERNANDEZ <<a href="mailto:j.miaja@alumnos.upm.es" class="">j.miaja@alumnos.upm.es</a>> wrote:</div>
<br class="Apple-interchange-newline">
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<div class="">Hello everybody,<br class="">
<br class="">
(in 2D)<br class="">
I want to test the vector potential dynamic formulation for superconducting materials<br class="">
and have set up an example in which a superconducting block is placed in a constant<br class="">
magnetic field.<br class="">
<br class="">
To create this constant magnetic field, I need to force the magnetic vector potential<br class="">
to be "x" on the boundary, so the constraint on each point along the boundary (the circle<br class="">
that encloses my example) depends on the x distance of that point to the centre.<br class="">
<br class="">
<br class="">
The issue I am having... I get this error:<br class="">
"GetDP - Function 'boundaryA' undefined in Region 110"<br class="">
Which I do not understand... since boundaryA and the constraint I have defined do not have<br class="">
anything to do with Region 110<br class="">
<br class="">
This is the part of the code interesting to the case<br class="">
<br class="">
Group{<br class="">
Air = Region[ 110 ];<br class="">
block = Region[ 111 ];<br class="">
contour = Region[ 100 ];<br class="">
<br class="">
Vol_tot = Region[ {block, Air} ];<br class="">
Vol_block = Region [ block ];<br class="">
Sur_contour = Region[ contour ];<br class="">
}<br class="">
<br class="">
<br class="">
Function{<br class="">
mu0 = 4.e-7 * Pi;<br class="">
nu [ Region[{Air, block}] ] = 1. / mu0;<br class="">
boundaryA[ contour ] = X[];<br class="">
// I have tried writing boundaryA[ Region{contour, Air} ] = X[];<br class="">
// but I get a syntax error on that line<br class="">
}<br class="">
<br class="">
Constraint{<br class="">
{ Name vectorPotA_contour;<br class="">
Case {<br class="">
{ Region Sur_contour; Value boundaryA[]; }<br class="">
}<br class="">
}<br class="">
}<br class="">
<br class="">
FunctionSpace{<br class="">
{ Name VecPotA; Type Form1P;<br class="">
BasisFunction{ { // a(x,y) = sum_k aCoef_k sBF_k(x,y)<br class="">
Name sBF; NameOfCoef aCoef; Function BF_PerpendicularEdge;<br class="">
Support Dom_VecPotA; Entity NodesOf[All];<br class="">
} }<br class="">
Constraint{ { NameOfCoef aCoef; EntityType NodesOf;<br class="">
<span class="Apple-tab-span" style="white-space:pre"></span><span class="Apple-tab-span" style="white-space:pre"></span><span class="Apple-tab-span" style="white-space:pre"></span>NameOfConstraint vectorPotA_contour; } }<br class="">
}<br class="">
}<br class="">
<br class="">
<br class="">
<br class="">
<br class="">
-- <br class="">
JORGE MIAJA HERNANDEZ<br class="">
Universidad Politecnica de Madrid<br class="">
<br class="">
<br class="">
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